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Free Will (Philosophy)

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Metaphysical freedom

In the contemporary free will debate, free will is often defined as a kind of control over action in virtue of which individuals can be held morally responsible for their actions just given that individuals perform those actions with understanding of the latter’s moral quality (Pereboom 2016 ).

Introduction

Understandings of free will vary widely among philosophers and other thinkers who have studied the subject. Some have thought that free will is merely the power of an agent to do what it wills, which could be (and has been) alternatively framed as an agent’s freedom from impediments to do what it wills. Others have suggested that free will is the ability through which an agent can be the ultimate source of its actions, as opposed to those actions stemming in the end from anything outside an agent’s control. Since there is no clear consensus on what free will is, this entry will focus on just one conception of free will and the contemporary ...

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Caruso, G. D. (2013). Free will and consciousness: A determinist account of the illusion of free will . Landham: Lexington Books.

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Pereboom, D. (2016). Free will, agency, and meaning in life . New York: Oxford University Press.

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Sarraf, M.A. (2021). Free Will (Philosophy). In: Shackelford, T.K., Weekes-Shackelford, V.A. (eds) Encyclopedia of Evolutionary Psychological Science. Springer, Cham. https://doi.org/10.1007/978-3-319-19650-3_2167

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Free Will, Determinism, and Moral Responsibility

--> Arthurs, Frank (2014) Free Will, Determinism, and Moral Responsibility. PhD thesis, University of Sheffield.

The first half of this thesis is a survey of the PSR, followed by consideration of arguments for and against the principle. This survey spans from the Ancient Greeks to the present day, and gives the reader a sense of the ways in which the PSR has been used both implicitly and explicitly throughout the history of philosophy. I argue that, while none of the arguments either for or against the PSR provide conclusive evidence of its truth or falsity, we should adopt a presumption in its favour. The best hope the PSR sceptic has of demonstrating the PSR’s falsity would be to find empirical evidence of something non-deterministic, since the PSR entails determinism. The theory of libertarianism is considered as just such a counterexample; but I argue the evidence for libertarianism is flimsy, and so the presumption in favour of the PSR remains. The second half starts from the premise that the PSR—and hence also determinism—is true, and goes on to examine what implications this has for our moral responsibility practices. We examine incompatibilist arguments by van Inwagen and Galen Strawson, both of which appeal to the origination condition. I contend that these arguments are compelling precisely because the origination condition to which they appeal is compelling. This leaves us with a dilemma: it seems like we can either accept these incompatibilist arguments, which would require us to abandon our moral responsibility practices; or we could save our moral responsibility practices by adopting some form of compatibilism, but at the cost of denying the intuitively appealing origination condition. In fact, to avoid the costs of each horn of this dilemma, we can seek to create a ‘mixed view’ instead. We consider Vargas’s revisionism, Double’s free will subjectivism, and Smilansky’s illusionism and fundamental dualism, which help to shape the mixed view I argue for here: a consequentialist compatibilist theory of moral responsibility. This theory allows us to acknowledge the impossibility of true desert without dispensing with our responsibility practices.

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Chapter 5: The problem of free will and determinism

The problem of free will and determinism

Matthew Van Cleave

“You say: I am not free. But I have raised and lowered my arm. Everyone understands that this illogical answer is an irrefutable proof of freedom.”

-Leo Tolstoy

“Man can do what he wills but he cannot will what he wills.”

-Arthur Shopenhauer

“None are more hopelessly enslaved than those who falsely believe they are free.”

-Johann Wolfgang von Goethe

The term “freedom” is used in many contexts, from legal, to moral, to psychological, to social, to political, to theological. The founders of the United States often extolled the virtues of “liberty” and “freedom,” as well as cautioned us about how difficult they were to maintain. But what do these terms mean, exactly? What does it mean to claim that humans are (or are not) free? Almost anyone living in a liberal democracy today would affirm that freedom is a good thing, but they almost certainly do not all agree on what freedom is. With a concept as slippery as that of free will, it is not surprising that there is often disagreement. Thus, it will be important to be very clear on what precisely we are talking about when we are either affirming or denying that humans have free will. There is an important general point here that extends beyond the issue of free will: when debating whether or not x exists, we must first be clear on defining x, otherwise we will end up simply talking past each other . The philosophical problem of free will and determinism is the problem of whether or not free will exists in light of determinism. Thus, it is crucial to be clear in defining what we mean by “free will” and “determinism.” As we will see, these turn out to be difficult and contested philosophical questions. In this chapter we will consider these different positions and some of the arguments for, as well as objections to, them.

Let’s begin with an example. Consider the 1998 movie, The Truman Show . In that movie the main character, Truman Burbank (played by Jim Carrey), is the star of a reality television show. However, he doesn’t know that he is. He believes he is just an ordinary person living in an ordinary neighborhood, but in fact this neighborhood is an elaborate set of a television show in which all of his friends and acquaintances are just actors. His every moment is being filmed and broadcast to a whole world of fans that he doesn’t know exists and almost every detail of his life has been carefully orchestrated and controlled by the producers of the show. For example, Truman’s little town is surrounded by a lake, but since he has been conditioned to believe (falsely) that he had a traumatic boating accident in which his father died, he never has the desire to leave the small little town and venture out into the larger world (at least at first). So consider the life of Truman as described above. Is he free or not? On the one hand, he gets to do pretty much everything he wants to do and he is pretty happy. Truman doesn’t look like he’s being coerced in any explicit way and if you asked him if he was, he would almost certain reply that he wasn’t being coerced and that he was in charge of his life. That is, he would say that he was free (at least to the same extent that the rest of us would). These points all seem to suggest that he is free. For example, when Truman decides that he would rather not take a boat ride out to explore the wider world (which initially is his decision), he is doing what he wants to do. His action isn’t coerced and does not feel coerced to him. In contrast, if someone holds a gun to my head and tells me “your wallet or your life!” then my action of giving him my wallet is definitely coerced and feels so.

On the other hand, it seems clear the Truman’s life is being manipulated and controlled in a way that undermines his agency and thus his freedom. It seems clear that Truman is not the master of his fate in the way that he thinks he is. As Goethe says in the epigraph at the beginning of this chapter, there’s a sense in which people like Truman are those who are most helplessly enslaved, since Truman is subject to a massive illusion that he has no reason to suspect. In contrast, someone who knows she is a slave (such as slaves in the antebellum South in the United States) at least retains the autonomy of knowing that she is being controlled. Truman seems to be in the situation of being enslaved and not knowing it and it seems harder for such a person to escape that reality because they do not have any desire to (since they don’t know they are being manipulated and controlled).

As the Truman Show example illustrates, it seems there can be reasonable disagreement about whether or not Truman is free. On the one hand, there’s a sense in which he is free because he does what he wants and doesn’t feel manipulated. On the other hand, there’s a sense in which he isn’t free because what he wants to do is being manipulated by forces outside of his control (namely, the producers of the show). An even better example of this kind of thing comes from Aldous Huxley’s classic dystopia, Brave New World . In the society that Huxley envisions, everyone does what they want and no one is ever unhappy. So far this sounds utopic rather than dystopic. What makes it dystopic is the fact that this state of affairs is achieved by genetic and behavioral conditioning in a way that seems to remove any choice. The citizens of the Brave New World do what they want, yes, but they seems to have absolutely no control over what they want in the first place. Rather, their desires are essentially implanted in them by a process of conditioning long before they are old enough to understand what is going on. The citizens of Brave New World do what they want, but they have no control over what the want in the first place. In that sense, they are like robots: they only have the desires that are chosen for them by the architects of the society.

So are people free as long as they are doing what they want to—that is, choosing the act according to their strongest desires? If so, then notice that the citizens of Brave New World would count as free, as would Truman from The Truman Show , since these are both cases of individuals who are acting on their strongest desires. The problem is that those desires are not desires those individuals have chosen. It feels like the individuals in those scenarios are being manipulated in a way that we believe we aren’t. Perhaps true freedom requires more than just that one does what one most wants to do. Perhaps true freedom requires a genuine choice. But what is a genuine choice beyond doing what one most wants to do?

Philosophers are generally of two main camps concerning the question of what free will is. Compatibilists believe that free will requires only that we are doing what we want to do in a way that isn’t coerced—in short, free actions are voluntary actions. Incompatibilists , motivated by examples like the above where our desires are themselves manipulated, believe that free will requires a genuine choice and they claim that a choice is genuine if and only if, were we given the choice to make again, we could have chosen otherwise . I can perhaps best crystalize the difference between these two positions by moving to a theological example. Suppose that there is a god who created the universe, including humans, and who controls everything that goes on in the universe, including what humans do. But suppose that god does this not my directly coercing us to do things that we don’t want to do but, rather, by implanting the desire in us to do what god wants us to do. Thus human beings, by doing what the want to do, would actually be doing what god wanted them to do. According to the compatibilist, humans in this scenario would be free since they would be doing what they want to do. According to the incompatibilist, however, humans in this scenario would not be free because given the desire that god had implanted in them, they would always end up doing the same thing if given the decision to make (assuming that desires deterministically cause behaviors). If you don’t like the theological example, consider a sci-fi example which has the same exact structure. Suppose there is an eccentric neuroscientist who has figured out how to wire your brain with a mechanism by which he can implant desire into you.

Suppose that the neuroscientist implants in you the desire to start collecting stamps and you do so. However, you know none of this (the surgery to implant the device was done while you were sleeping and you are none the wiser).

From your perspective, one day you find yourself with the desire to start collecting stamps. It feels to you as though this was something you chose and were not coerced to do. However, the reality is that given this desire that the neuroscientist implanted in you, you could not have chosen not to have started collecting stamps (that is, you were necessitated to start collecting stamps, given the desire). Again, in this scenario the compatibilist would say that your choice to start collecting stamps was free (since it was something you wanted to do and did not feel coerced to you), but the incompatibilist would say that your choice was not free since given the implantation of the desire, you could not have chosen otherwise.

We have not quite yet gotten to the nub of the philosophical problem of free will and determinism because we have not yet talked about determinism and the problem it is supposed to present for free will. What is determinism?

Determinism is the doctrine that every cause is itself the effect of a prior cause. More precisely, if an event (E) is determined, then there are prior conditions (C) which are sufficient for the occurrence of E. That means that if C occurs, then E has to occur. Determinism is simply the claim that every event in the universe is determined. Determinism is assumed in the natural sciences such as physics, chemistry and biology (with the exception of quantum physics for reasons I won’t explain here). Science always assumes that any particular event has some law-like explanation—that is, underlying any particular cause is some set of law- like regularities. We might not know what the laws are, but the whole assumption of the natural sciences is that there are such laws, even if we don’t currently know what they are. It is this assumption that leads scientists to search for causes and patterns in the world, as opposed to just saying that everything is random. Where determinism starts to become contentious is when we move into the human sciences, such as psychology, sociology, and economics. To illustrate why this is contentious, consider the famous example of Laplace’s demon that comes from Pierre-Simon Laplace in 1814:

We may regard the present state of the universe as the effect of its past and the cause of its future. An intellect which at a certain moment would know all forces that set nature in motion, and all positions of all items of which nature is composed, if this intellect were also vast enough to submit these data to analysis, it would embrace in a single formula the movements of the greatest bodies of the universe and those of the tiniest atom; for such an intellect nothing would be uncertain and the future just like the past would be present before its eyes.

Laplace’s point is that if determinism were true, then everything that every happened in the universe, including every human action ever undertaken, had to have happened. Of course humans, being limited in knowledge, could never predict everything that would happen from here out, but some being that was unlimited in intelligence could do exactly that. Pause for a moment to consider what this means. If determinism is true, then Laplace’s demon would have been able to predict from the point of the big bang, that you would be reading these words on this page at this exact point of time. Or that you had what you had for breakfast this morning. Or any other fact in the universe. This seems hard to believe, since it seems like some things that happen in the universe didn’t have to happen. Certain human actions seem to be the paradigm case of such events. If I ate an omelet for breakfast this morning, that may be a fact but it seems strange to think that this fact was necessitated as soon as the big bang occurred. Human actions seem to have a kind of independence from web of deterministic web of causes and effects in a way that, say, billiard balls don’t.

Given that the cue ball his the 8 ball with a specific velocity, at a certain angle, and taking into effect the coefficient of friction of the felt on the pool table, the exact location of the 8 ball is, so to speak, already determined before it ends up there. But human behavior doesn’t seem to be like the behavior of the 8 ball in this way, which is why some people think that the human sciences are importantly different than the natural sciences. Whether or not the human sciences are also deterministic is an issue that helps distinguish the different philosophical positions one can take on free will, as we will see presently. But the important point to see right now is that determinism is a doctrine that applies to all causes, including human actions. Thus, if some particular brain state is what ultimately caused my action and that brain state itself was caused by a prior brain state, and so on, then my action had to occur given those earlier prior events. And that entails that I couldn’t have chosen to act otherwise, given that those earlier events took place . That means that the incompatibilist position on free will cannot be correct if determinism is true. Recall that incompatibilism requires that a choice is free only if one could have chosen differently, given all the same initial conditions. But if determinism is true, then human actions are no different than the 8 ball: given what has come before, the current event had to happen. Thus, if this morning I cooked an omelet, then my “choice” to make that omelet could not have been otherwise. Given the complex web of prior influences on my behavior, my making that omelet was determined. It had to occur.

Of course, it feels to us, when contemplating our own futures, that there are many different possible ways our lives might go—many possible choices to be made. But if determinism is true, then this is an illusion. In reality, there is only one way that things could go, it’s just that we can’t see what that is because of our limited knowledge. Consider the figure below. Each junction in the figure below represents a decision I make and let’s suppose that some (much larger) decision tree like this could represent all of the possible ways my life could go. At any point in time, when contemplating what to do, it seems that I can conceive of my life going many different possible ways. Suppose that A represents one series of choices and B another. Suppose, further, that A represents what I actually do (looking backwards over my life from the future). Although from this point in time it seems that I could also have made the series of choices represented in B, if determinism is true then this is false. That is, if A is what ends up happening, then A is the only thing that ever could have happened . If it hasn’t yet hit you how determinism conflicts with our sense of our own possibilities in life, think about that for a second.

As the foregoing I hope makes clear, the incompatibilist definition of free will is incompatibile with determinism (that’s why it’s called “incompatibilist”). But that leaves open the question of which one is true. To say that free will and determinism are logically incompatible is just to say that they cannot both be true, meaning that one or the other must be false. But which one? Some will claim that it is determinism which is false. This position is called libertarianism (not to be confused with political libertarianism, which is a totally different idea). Others claim that determinism is true and that, therefore, there is no free will. This position is called hard determinism. A third type of position, compatibilism , rejects the incompatibilist definition of freedom and claims that free will and determinism are compatible (hence the name). The table below compares these different positions. But which one is correct? In the remainder of the chapter we will consider some arguments for and against these three positions on free will and determinism.

Libertarianism

Both libertarianism and hard determinism accept the following proposition: If determinism is true, then there is no free will. What distinguishes libertarianism from hard determinism is the libertarian’s claim that there is free will. But why should we think this? This question is especially pressing when we recognize that we assume a deterministic view in many other domains in life. When you have a toothache, we know that something must have caused that toothache and whatever cause that was, something else must have caused that cause. It would be a strange dentist who told you that your toothache didn’t have a cause but just randomly occurred. When the weather doesn’t go as the meteorologist predicts, we assume there must be a cause for why the weather did what it did. We might not ever know the cause in all its specific details, but assume there must be one. In cases like meteorology, when our scientific predictions are wrong, we don’t always go back and try to figure out what the actual causes were—why our predictions were wrong. But in other cases we do. Consider the explosion of the Space Shuttle Challenger in 1986. Years later it was finally determined what led to that explosion (“O-ring” seals that were not designed for the colder condition of the launch). There’s a detailed deterministic physical explanation that one could give of how the failure of those O-rings led to the explosion of the Challenger. In all of these cases, determinism is the fundamental assumption and it seems almost nothing could overturn it.

But the libertarian thinks that the domain of human action is different than every other domain. Humans are somehow able to rise above all of the influences on them and make decisions that are not themselves determined by anything that precedes them. The philosopher Roderick Chisholm accurately captured the libertarian position when he claimed that “we have a prerogative which some would attribute only to God: each of us, when we really act, is a prime mover unmoved. In doing what we do, we cause certain events to happen, and nothing and no one, except we ourselves, causes us to cause those events to happen” (Chisholm, 1964). But why should we think that we have such a godlike ability? We will consider two arguments the libertarian makes in support of her position: the argument from intuitions and the argument from moral responsibility.

The argument from intuitions is based on the very strong intuition that there are some things that we have control over and that nothing causes us to do those things except for our own willing them. The strongest case for this concerns very simple actions, such as moving one’s finger. Suppose that I hold up my index finger and say that I am going to move it to the right or the to the left, but that I have not yet decided which way to move it. At the moment before I move my finger one way or the other, it truly seems to me that my future is open.

Nothing in my past and nothing in my present seems to be determining me to move my finger to the right or to the left. Rather, it seems to me that I have total control over what happens next. Whichever way I move my finger, it seems that I could have moved it the other way. So if, as a matter of fact, I move my finger to the right, it seems unquestionably true that I could have moved it to the left (and vice versa, mutatis mutandis ). Thus, in cases of simple actions like moving my finger to the right or left, it seems that the strong incompatibilist definition of freedom is met: we have a very strong intuition that no matter what I actually did, I could have chosen otherwise, were I to be given that exact choice again . The libertarian does not claim that all human actions are like this. Indeed, many of our actions (perhaps even ones that we think are free) are determined by prior causes. The libertarian’s claim is just that at least some of our actions do meet the incompatibilist’s definition of free and, thus, that determinism is not universally true.

The argument from moral responsibility is a good example of what philosophers call a transcendental argument . Transcendental arguments attempt to establish the truth of something by showing that that thing is necessary in order for something else, which we strongly believe to be true, to be true. So consider the idea that normally developed adult human beings are morally responsible for their actions. For example, if Bob embezzles money from his charity in order to help pay for a new sports car, we would rightly hold Bob accountable for this action. That is, we would punish Bob and would see punishment as appropriate. But a necessary condition of holding Bob responsible is that Bob’s action was one that he chose, one that he was in control of, one that he could have chosen not to do. Philosophers call this principle ought implies can : if we say that someone ought (or ought not) do something, this implies that they can do it (that is, they are capable of doing it). The ought implies can principle is consistent with our legal practices. For example, in cases where we believe that a person was not capable of doing the right thing, we no longer hold them morally or criminally liable. A good example of this within our legal system is the insanity defense: if someone was determined to be incapable of appreciating the difference between right and wrong, we do not find them guilty of a crime. But notice what determinism would do to the ought implies can principle. If everything we ever do had to happen (think Laplace’s demon), that means that Bob had to embezzle those funds and buy that sports car. The universe demanded it. That means he couldn’t not have done those things. But if that is so, then, by the ought implies can principle, we cannot say that he ought not to have done those things. That is, we cannot hold Bob morally responsible for those things. But this seems absurd, the libertarian will say.

Surely Bob was responsible for those things and we are right to hold him responsible. But the only we way can reasonably do this is if we assume that his actions were chosen—that he could have chosen to do otherwise than he in fact chose. Thus, determinism is incompatible with the idea that human beings are morally responsible agents. The practice of holding each other to be morally responsible agents doesn’t make sense unless humans have incompatibilist free will—unless they could have chosen to do otherwise than they in fact did. That is the libertarian’s transcendental argument from moral responsibility.

Hard determinism

Hard determinism denies that there is free will. The hard determinist is a “tough-minded” individual who bravely accepts the implication of a scientific view of the world. Since we don’t in general accept that there are causes that are not themselves the result of prior causes, we should apply this to human actions too. And this means that humans, contrary to what they might believe (or wish to believe) about themselves, do not have free will. As noted above, hard determininsm follows from accepting the incompatibilist definition of free will as well as the claim that determinism is universally true. One of the strongest arguments in favor of hard determinism is based on the weakness of the libertarian position. In particular, the hard determinist argues that accepting the existence of free will leaves us with an inexplicable mystery: how can a physical system initiate causes that are not themselves caused?

If the libertarian is right, then when an action is free it is such that given exactly the same events leading up to one’s action, one still could have acted otherwise than they did. But this seems to require that the action/choice was not determined by any prior event or set of events. Consider my decision to make a cheese omelet for breakfast this morning. The libertarian will say that my decision to make the cheese omelet was not free unless I could have chosen to do otherwise (given all the same initial conditions). But that means that nothing was determining my decision. But what kind of thing is a decision such that it causes my actions but is not itself caused by anything? We do not know of any other kind of thing like this in the universe. Rather, we think that any event or thing must have been caused by some (typically complex) set of conditions or events. Things don’t just pop into existence without being caused . That is as fundamental a principle as any we can think of. Philosophers have for centuries upheld the principle that “nothing comes from nothing.” They even have a fancy Latin phrase for it: ex nihilo nihil fir [1] . The problem is that my decision to make a cheese omelet seems to be just that: something that causes but is not itself caused. Indeed, as noted earlier, the libertarian Roderick Chisholm embraces this consequence of the libertarian position very clearly when he claimed that when we exercise our free will,

“we have a prerogative which some would attribute only to God: each of us, when we really act, is a prime mover unmoved. In doing what we do, we cause certain events to happen, and nothing and no one, except we ourselves, causes us to cause those events to happen” (Chisholm, 1964).

How could something like this exist? At this point the libertarian might respond something like this:

I am not claiming that something comes from nothing; I am just claiming that our decisions are not themselves determined by any prior thing. Rather, we ourselves, as agents, cause our decisions and nothing else causes us to cause those decisions (at least in cases where we have acted freely).

However, it seems that the libertarian in this case has simply pushed the mystery back one step: we cause our decisions, granted, but what causes us to make those decisions? The libertarian’s answer here is that nothing causes us. But now we have the same problem again: the agent is responsible for causing the decision but nothing causes the agent to make that decision. Thus we seem to have something coming from nothing. Let’s call this argument the argument from mysterious causes. Here’s the argument in standard form:

• The existence of free will implies that when an agent freely decides to do something, the agent’s choice is not caused (determined) by anything.
• To say that something has no cause is to violate the ex nihilo nihil fit principle.
• But nothing can violate the ex nihilo nihil fit principle.
• Therefore, there is no free will (from 1-3)

The hard determinist will make a strong case for premise 3 in the above argument by invoking basic scientific principles such as the law of conservation of energy, which says that the amount of energy within a closed system stays that same. That is, energy cannot be created or destroyed. Consider a billiard ball. If it is to move then it must get the required energy to do so from someplace else (typically another billiard ball knocking into it, the cue stick hitting it or someone tilting the pool table). To allow that something could occur without any cause—in this case, the agent’s decision—would be a violation of the conservation of energy principle, which is as basic a scientific principle as we know. When forced to choose between uphold such a basic scientific principle as this and believing in free will, the hard determinist opts for the former. The hard determinist will put the ball in the libertarian’s court to explain how something could come from nothing.

I will close this section by indicating how these problems in philosophy often ramify into other areas of philosophy. In the first place, there is a fairly common way that libertarians respond to the charge that their view violates basic principles such as ex nihilo nihil fit and, more specifically, the physical law of conservation of energy. Libertarians could claim that the mind is not physical—a position known in the philosophy of mind as “substance dualism” (see philosophy of mind chapter in this textbook for more on substance dualism). If the mind isn’t physical, then neither are our mental events, such our decisions.

Rather, all of these things are nonphysical entities. If decisions are nonphysical entities, there is at least no violation of the physical laws such as the law of conservation of energy. [2] Of course, if the libertarian were to take this route of defending her position, she would then need to defend this further assumption (no small task). In any case, my main point here is to see the way that responses to the problem of free well and determinism may connect with other issue within philosophy. In this case, the libertarian’s defense of free will may turn out to depend on the defensibility of other assumptions they make about the nature of the mind. But the libertarian is not the only one who will need to ultimately connect her account of free will up with other issues in philosophy. Since hard determinists deny that free will exists, it seems that they will owe us some account of moral responsibility. If, moral responsibility requires that humans have free will (see previous section), then in denying free will we seem to also be denying that humans have moral responsibility. Thus, hard determinists will face the objection that in rejecting free will they also destroy moral responsibility.

But since it seems we must hold individuals morally to account for certain actions (such as the embezzler from the previous section), the hard determinist

needs some account of how it makes sense to do this given that human being don’t have free will. My point here is not to broach the issue of how the hard determinist might answer this, but simply to show how hard determinist’s position on the problem of free will and determinism must ultimately connect with other issues in philosophy, such issues in metaethics [3] . This is a common thing that happens in philosophy. We may try to consider an issue or problem in isolation, but sooner or later that problem will connect up with other issues in philosophy.

Compatibilism

The best argument for compatibilism builds on a consideration of the difficulties with the incompatibilist definition of free will (which both the libertarian and the hard determinist accept). As defined above, compatibilists agree with the hard determinists that determinism is true, but reject the incompatibilist definition of free will that hard determinists accept. This allows compatbilists to claim that free will is compatible with determinism. Both libertarians and hard compatibilists tend to feel that this is somehow cheating, but the compatibilist attempts to convince us arguing that the strong incompatibilist definition of freedom is problematic and that only the weaker compatibilist definition of freedom—free actions are voluntary actions—will work. We will consider two objections that the compatibilist raises for the incompatibilist definition of freedom: the epistemic objection and the arbitrariness objection . Then we will consider the compatibilist’s own definition of free will and show how that definition fits better with some of our common sense intuitions about the nature of free actions.

The epistemic objection is that there is no way for us to ever know whether any one of our actions was free or not. Recall that the incompatibilist definition of freedom says that a decision is free if and only if I could have chosen otherwise than I in fact chose, given exactly all the same conditions. This means that if we were, so to speak, rewind the tape of time and be given that decision to make over again, we could have chosen differently. So suppose the question is whether my decision to make a cheese omelet for breakfast was free. To answer this question, we would have to know when I could have chosen differently. But how am I supposed to know that ? It seems that I would have to answer a question about a strange counterfactual : if given that decision to make over again, would I choose the same way every time or not? How on earth am I supposed to know how to answer that question? I could say that it seems to me that I could make a different decision regarding making the cheese omelet (for example, I could have decided to eat cereal instead), but why should I think that that is the right answer? After all, how things seem regularly turn out to be not the case—especially in science. The problem is that I don’t seem to have any good way of answering this counterfactual question of what I would choose if given the same decision to make over again. Thus the epistemic objection [4] is that since I have no way of knowing whether I would/wouldn’t make the same decision again, I can never know whether any of my actions are free.

The arbitrariness objection is that it turns our free actions into arbitrary actions. And arbitrary actions are not free actions. To see why, consider that if the incompatibilist definition is true, then nothing determines our free choices, not even our own desires . For if our desires were determining our choices then if we were to rewind the tape of time and, so to speak, reset everything— including our desires —the same way, then given those same desires we would choose the same way every time. And that would mean our choice was not free, according to the incompatbilist. It is imperative to remember that incompatibilism says that if an action is not free if it is determined ( including if it is determined by our own desires ). But now the question is: if my desires are not causing my decision, what is? When I make a decision, where does that decision come from, if not from my desires and beliefs? Presumably it cannot come from nothing ( ex nihilo nihil fit ). The problem is that if the incompatibilist rejects that anything is causing my decisions, then how can my decisions be anything but arbitrary?

Presumably an arbitrary decision—a decision not driven by any reason at all—is not an exercise of my freedom. Freedom seems to require that we are exercising some kind of control over my actions and decisions. If my action or decision is arbitrary that means that no reason or explanation of the action/decision can be given. Here’s the arbitrariness objection cast as a reductio ad absurdum argument:

• A free choice is one that isn’t determined by anything, including our desires. [incompatibilist definition of freedom]
• If our own desires are not determining our choices, then those choices are arbitrary.
• If a choice is arbitrary then it is not something over which we have control
• If a choice isn’t something over which we have control, then it isn’t a free choice
• Therefore, a free choice is not a free choice (from 1-4)

A reductio ad absurdum argument is one that starts with a certain assumption and then derives a contradiction from that assumption, thereby showing that assumption must be false. In this case, the incompatibilist’s definition of a free choice leads to the contradiction that something that is a free choice isn’t a free choice.

What has gone wrong here? The compatibilist will claim that what has gone wrong is incompatibilist’s idea that a free action must be one that isn’t caused/determined by anything. The compatibilist claims that free actions can still be determined, as long as what is determining them is our own internal reasons, over which we have some control, rather than external things over which we have no control. Free choices, according to the compatibilist, are just choices that are caused by our own best reasons . The fact that, given the exact same choices, I couldn’t have chosen otherwise doesn’t undermine what freedom is (as the incompatibilist claims) but defines what it is. Consider an example. Suppose that my goal is to spend the shortest amount of time on my commute home from work so that I can be on time for a dinner date. Also suppose, for simplicity, that there are only three possible routes that I can take: route 1 is the shortest, whereas route 2 is longer but scenic and 3 is more direct but has potentially more traffic, especially during rush hour. I am leaving early from work today so that I can make my dinner date but before I leave, I check the traffic and learn that there has been a wreck on route 1. Thus, I must choose between routes 2 and 3. I reason that since I am leaving earlier, route 3 will be the quickest since there won’t be much traffic while I’m on my early commute home. So I take route 3 and arrive home in a timely manner: mission accomplished. The compatibilist would say that this is a paradigm case of a free action (or a series of free actions). The decisions I made about how to get home were drive both by my desire to get home quickly and also by the information I was operating with. Assuming that that information was good and I reasoned well with it and was thereby able to accomplish my goal (that is, get home in a timely manner), then my action is free. My action is free not because my choices were undetermined, but rather because my choices were determined (caused) by my own best reasons—that is, by my desires and informed beliefs. The incompatibilist, in contrast, would say that an action is free only if I could have chosen otherwise, given all the same conditions again. But think of what that would mean in the case above! Why on earth would I choose routes 1 or 2 in the above scenario, given that my most pressing goal is to be able to get to my dinner date on time? Why would anyone knowingly choose to do something that thwarts their primary goals? It doesn’t seem that, given the set of beliefs and desires that I actually had at the time, I could have chosen otherwise in that situation. Of course, if you change the information I had (my beliefs) or you change what I wanted to accomplish (my desires), then of course I could have acted otherwise than I did. If I didn’t have anything pressing to do when I left work and wanted a scenic and leisurely drive home in my new convertible, then I probably would have taken route 2! But that isn’t what the incompatibilist requires for free will. As we’ve seen, they require the much stronger condition that one’s action be such that it could have been different even if they faced exactly the same condition over again. But in this scenario that would be an irrational thing to do. Of course, if one’s goal were to be irrational and to thwart one’s own desires, I suppose they could do that. But that would still seem to be acting in accordance with one’s desires.

Many times free will is treated as an all or nothing thing, either humans have it or they don’t. This seems to be exactly how the libertarian and hard determinist see the matter. And that makes sense given that they are both incompatibilists and view free will and determinism like oil and water—they don’t mix. But it is interesting to note that it is common for us to talk about decisions, action, or even whole lives (or periods of a life) as being more or less free . Consider the Goethe quotation at the beginning of this chapter: “none are more enslaved than those who falsely believe they are free.” Here Goethe is conceiving of freedom as coming in degrees and claiming that those who think they are free but aren’t as less free than those who aren’t free and know it. But this way of speaking implies that free will and determinism are actually on a continuum rather than a black and white either or. The compatibilist can build this fact about our ordinary ways of speaking about freedom into an argument for their position. Call this the argument from ordinary language . The argument from ordinary language is that only compatibilism is able to accommodate our common way of speaking about freedom coming in degrees—that is, as actions or decisions being more or less free. The libertarian can’t account for this since the libertarian sees freedom as an all or nothing matter: if you couldn’t have done otherwise then your action was not truly free; if you could have done otherwise, then it was. In contrast, the compatibilist is able to explain the difference between more/less free action on the continuum. For the compatibilist, the freest actions are those in which one reasons well with the best information, thus acting for one’s own best reasons, thus furthering one’s interests. The least free actions are those in which one lacks information and reason poorly, thus not acting for one’s own best reasons, thus not furthering one’s interests. Since reasoning well, being informed, and being reflective are all things that come in degrees (since one can possess these traits to a greater or lesser extent) and since these attribute define what free will is for the compatibilist, it follows that free will comes in degrees. And that means that the compatibilist is able to make sense or a very common way that we talk about freedom (as coming in degrees) and thus make sense of ourselves, whereas the libertarian isn’t.

There’s one further advantage that compatibilists can claim over libertarians. Libertarians defend the claim that there are at least some cases where one exercises one’s free will and that this entails that determinism is false. However, this leaves totally open the extent of human free will. Even if it were true that there are at least some cases where humans exercise free will, there might not be very many instances and/or those decisions in which we exercise free will might be fairly trivial (for example, moving one’s finger to the left or right). But if it were to turn out that free will was relatively rare, then even if the libertarian were correct that there are at least some instances where we exercise free will, it would be cold comfort to those who believe in free will. Imagine: if there were only a handful of cases in your life where your decision was an exercise of your free will, then it doesn’t seem like you have lived a life which was very free. In other words, in such a case, for all practical purposes, determinism would be true.

Thus, it seems like the question of how widespread free will is is an important one. However, the libertarian seems unable to answer it for reasons that we’ve already seen. Answering the question requires knowing whether or not one could have acted otherwise than one in fact did. But in order to know this, we’d have to know how to answer a strange counterfactual—whether I could have acted differently given all the same conditions. As noted earlier (“the epistemic objection”), this raises a tough epistemological question for the libertarian: how could he ever know how to answer this question? And so how could he ever know whether a particular action was free or not? In contrast, the compatibilist can easily answer the question of how widespread free will is: how “free” one’s life is depends on the extent to which one’s actions are driven by their own best reasons. And this, in turn, depends on factors such as how well-informed, reflective, and reasonable a person is. This might not always be easy to determine, but it seems more tractable than trying to figure out the truth conditions of the libertarian’s counterfactual.

In short, it seems that compatibilism has significant advantages over both libertarianism and hard determinism. As compared to the libertarian, compatibilism gives a better answer to how free will can come in degrees as well as how widespread free will is. It also doesn’t face the arbitrariness objection or the epistemic objection. As compared to the hard determinist, the compatibilist is able to give a more satisfying answer to the moral responsibility issue. Unlike the hard determinist, who sees all action as equally determined (and so not under our control), the compatibilist thinks there is an important distinction within the class of human actions: those that are under our control versus those that aren’t. As we’ve seen above, the compatibilist doesn’t see this distinction as black and white, but, rather, as existing on a continuum. However, a vague boundary is still a boundary. That is, for the compatibilist there are still paradigm cases in which a person has acted freely and thus should be held morally responsible for that action (for example, the person who embezzles money from a charity and then covers it up) and clear cases in which a person hasn’t acted freely (for example, the person who was told to do something by their boss but didn’t know that it was actually something illegal). The compatibilist’s point is that this distinction between free and unfree actions matters, both morally and legally, and that we would be unwise to simply jettison this distinction, as the hard determinist does. We do need some distinction within the class of human actions between those for which we hold people responsible and those for which we don’t. The compatibilist’s claim is that they are able to do with while the hard determinist isn’t. And they’re able to do it without inheriting any of the problems of the libertarian position.

Study questions

• True or false: Compatibilists and libertarians agree on what free will is (on the concept of free will).
• True or false: Hard determinists and libertarians agree that an action is free only when I could have chosen otherwise than I in fact chose.
• True or false: the libertarian gives a transcendental argument for why we must have free will.
• True or false: both compatibilists and hard determinists believe that all human actions are determined.
• True or false: compatibilists see free will as an all or nothing matter: either an action is free or it isn’t; there’s no middle ground.
• True or false: compatibilists think that in the case of a truly free action, I could have chosen otherwise than I in fact did choose.
• True or false: One objection to libertarianism is that on that view it is difficult to know when a particular action was free.
• True or false: determinism is a fundamental assumption of the natural sciences (physics, chemistry, biology, and so on).
• True or false: the best that support the libertarian’s position are cases of very simple or arbitrary actions, such as choosing to move my finger to the left or to the right.
• True or false: libertarians thinks that as long as my choices are caused by my desires, I have chosen freely.

For deeper thought

• Consider the Shopenhauer quotation at the beginning of the chapter. Which of the three views do you think this supports and why?
• Consider the movie The Truman Show . How would the libertarian and compatibilist disagree regarding whether or not Truman has free will?
• Consider the Tolstoy quote at the beginning of the chapter. Which of the three views does this support and why?
• Consider a child being raised by white supremacist parents who grows up to have white supremacist views and to act on those views. As a child, does this individual have free will? As an adult, do they have free will? Defend your answer with reference to one of the three views.
• Consider the eccentric neuroscientist example (above). How might a compatibilist try to show that this isn’t really an objection to her view? That is, how might the compatibilist show that this is not a case in which the individual’s action is the result of a well-informed, reflective choice?
• Actually, the phrase was originally a Latin phrase, not an English one because at the time in Medieval Europe philosophers wrote in Latin. ↵
• On the other hand, if these nonphysical decisions are supposed to have physical effects in the world (such as causing our behaviors) then although there is no problem with the agent’s decision itself being uncaused, there would still be a problem with how that decision can be translated into the physical world without violating the law of conservation of energy. ↵
• One well-known and influential attempt to reconcile moral responsibility with determinism is P.F. Strawson’s “Freedom and Resentment” (1962). ↵
• The term “epistemic” just denotes something relating to knowledge. It comes from the Greek work episteme, which means knowledge or belief. ↵

Introduction to Philosophy Copyright © by Matthew Van Cleave is licensed under a Creative Commons Attribution 4.0 International License , except where otherwise noted.

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• National Center for Biotechnology Information - PubMed Central - Free Will and Neuroscience: From Explaining Freedom Away to New Ways of Operationalizing and Measuring It
• Stanford Encyclopedia of Philosophy - Free Will
• University of Notre Dame - Is free will possible?
• Nature - Is free will an illusion?
• Psychology Today - Free Will
• Routledge Encyclopedia of Philosophy - Free Will
• Internet Encyclopedia of Philosophy - Free Will
• Frontiers - Frontiers in Human Neuroscience - Free Will and Neuroscience: From explaining freedom away to new ways of operationalizing and measuring it
• Simply Psychology - Freewill vs Determinism in Psychology
• Humanities LibreTexts - Free Will, Determinism, and Responsibility
• University of Central Florida Pressbooks - The problem of free will and determinism

free will , in philosophy and science , the supposed power or capacity of humans to make decisions or perform actions independently of any prior event or state of the universe. Arguments for free will have been based on the subjective experience of freedom, on sentiments of guilt, on revealed religion , and on the common assumption of individual moral responsibility that underlies the concepts of law, reward, punishment, and incentive. In theology , the existence of free will must be reconciled with God’s omniscience and benevolence and with divine grace , which allegedly is necessary for any meritorious act. A prominent feature of existentialism is the concept of a radical, perpetual, and frequently agonizing freedom of choice . Jean-Paul Sartre (1905–80), for example, spoke of the individual “condemned to be free.”

The existence of free will is denied by some proponents of determinism , the thesis that every event in the universe is causally inevitable. Determinism entails that, in a situation in which people make a certain decision or perform a certain action, it is impossible that they could have made any other decision or performed any other action. In other words, it is never true that people could have decided or acted otherwise than they actually did. Philosophers and scientists who believe that determinism in this sense is incompatible with free will are known as “hard” determinists.

In contrast, so-called “soft” determinists, also called compatibilists, believe that determinism and free will are compatible after all. In most cases, soft determinists attempt to achieve this reconciliation by subtly revising or weakening the commonsense notion of free will. Contemporary soft determinists have included the English philosopher G.E. Moore (1873–1958), who held that acting freely means only that one would have acted otherwise had one decided to do so (even if, in fact, one could not have decided to do so), and the American philosopher Harry Frankfurt (born 1929), who has argued that acting freely amounts to identifying with or approving of one’s own desires (even if those desires are such that one cannot help but act on them).

The extreme alternative to determinism is indeterminism , the view that at least some events have no deterministic cause but occur randomly, or by chance. Indeterminism is supported to some extent by research in  quantum mechanics , which suggests that some events at the quantum level are in principle unpredictable (and therefore random). Philosophers and scientists who believe that the universe is indeterministic and that humans possess free will are known as “libertarians” (libertarianism in this sense is not to be confused with the school of political philosophy called  libertarianism ). Although it is possible to hold that the universe is indeterministic and that human actions are nevertheless determined, few contemporary philosophers defend this view.

Libertarianism is vulnerable to what is called the “intelligibility” objection, which points out that people can have no more control over a purely random action than they have over an action that is deterministically inevitable; in neither case does free will enter the picture. Hence, if human actions are indeterministic, free will does not exist. See also free will and moral responsibility .

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van Inwagen: An Essay on Free Will - 1986

Related Papers

Marco Hausmann

According to Peter van Inwagen, free will " is a mystery because […] there are good arguments for the incompatibility of free will and determinism and good arguments for [the] incompatibility of free will and indeterminism, and […] no one has ever identified a very plausible candidate for the flaw in any of the arguments in either class. " The aim of my paper is to identify what might be a flaw in van Inwagen's arguments for the incompatibility of free will and determinism. According to van Inwagen's arguments for the incompatibility of free will and determinism, nobody is able to do anything about the truth of a complete description of a past state of the world. In my view, this is the assumption that might well be a flaw in van Inwagen's argument. However, I do not argue directly against this assumption. Instead, I develop three arguments to the conclusion that van Inwagen's attempt to justify this assumption fails. I argue that van Inwagen's attempt to justify this assumption is, first, incompatible with a theory of propositions according to which necessarily equivalent propositions are identical, second, incompatible with a description theory of proper names according to which proper names are merely abbreviations for definite descriptions and, third, incompatible with a metaphysical theory according to which there is no such thing as the past. At the end of my paper, I sketch an independent argument to the conclusion that van Inwagen's attempt to justify his crucial assumption fails. I conclude that van Inwagen has given us no reason to believe that nobody is able to do anything about the truth of a complete description of a past state of the world. Further, I show that the argument of my paper not only applies to van Inwagen's argument for the incompatibility of free will and determinism, but also to a famous argument for the incompatibility of free will and divine foreknowledge. In my appendix, I discuss the validity of van Inwagen's argument for the incompatibility of free will and determinism.

Philosophical Studies

Jean-Baptiste Guillon

Streit um die Freiheit

Randolph Clarke

Open Journal of Philosophy, vol. 4, no. 11, 482-498

Richard Startup

Progress may be made in resolving the tension between free will and determinism by analysis of the necessary conditions of freedom. It is of the essence that these conditions include causal and deterministic regularities. Furthermore, the human expression of free will is informed by understanding some of those regularities, and increments in that understanding have served to enhance freedom. When the possible character of a deterministic system based on physical theory is considered, it is judged that, far from implying the elimination of human freedom, such a theory might simply set parameters for it; indeed knowledge of that system could again prove to be in some respects liberating. On the other hand, it is of the essence that the overarching biological framework is not a deterministic system and it foregrounds the behavioural flexibility of humans in being able to choose within a range of options and react to chance occurrences. Furthermore, an issue for determinism flows from the way in which randomness (e.g. using a true random number generator) and chance events could and do enter human life. Once the implications of that issue are fully understood, other elements fit comfortably together in our understanding of freely undertaken action: the contribution of reasons and causes; the fact that reasons are never sufficient to account for outcomes; the rationale for the attribution of praise and blame.

New Waves in Philosophy of Action

Manuel Vargas

International Journal of Humanities, Social Sciences and Education, (IJHSSE), volume 10, Issue 6, pp. 25-29

Elena Ene Draghici-Vasilescu (see also Elena Ene D-Vasilescu)

As we know, there is a difference between a simple wish and the will of an individual. Not only a concrete action is required in order to alleviate the impact of various factors that inhibit the former before it becomes ‘will’, but also a deep level of human consciousness. It implies conscientious motivation, clear goals, etc. My paper introduces some of the elements instrumental in the leap from the wish to the human will. As the issue of Free Will shall be central to the paper because when I say ‘human will’ I refer to ‘free will’, I have to mention that I adopt a pragmatic perspective on this notion. I. e. even though, as quantum physics tell us, any decision we make is conditioned by realities pertaining to it, we do not think of this state of affair when we carry out our activities – at least not always. Because of that we feel free – free enough to be able to function according to social norms.

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Sample essay on free will and moral responsibility.

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Free will is a fundamental aspect of modern philosophy. This sample philosophy paper explores how moral responsibility and free will represent an important area of moral debate between philosophers. This type of writing would of course be seen in a philosophy course, but many people might also be inclined to write an essay about their opinions on free will for personal reasons.

History of free will and moral responsibility

In our history, free will and moral responsibility have been longstanding debates amongst philosophers. Some contend that free will does not exist while others believe we have control over our actions and decisions. For the most part, determinists believe that free will does not exist because our fate is predetermined. An example of this philosophy is found in the Book of Genisis .

The biblical story states God created man for a purpose and designed them to worship him. Since God designed humans to operate in a certain fashion and he knew the outcome, it could be argued from a determinist point of view that free will didn't exist. Because our actions are determined, it seems that we are unable to bear any responsibility for our acts.

Galen Strawson has suggested that “in order to be truly deserving, we must be responsible for that which makes us deserving.”

However, Strawson also has implied that we are unable to be responsible. We are unable to be responsible because, as determinists suggest, all our decisions are premade; therefore, we do not act of our own free will. Consequently, because our actions are not the cause of our free will, we cannot be truly deserving because we lack responsibility for what we do.

Defining free will

Free will implies we are able to choose the majority of our actions ("Free will," 2013). While we would expect to choose the right course of action, we often make bad decisions. This reflects the thinking that we do not have free will because if we were genuinely and consistently capable of benevolence, we would freely decide to make the ‘right’ decisions.

In order for free will to be tangible, an individual would have to have control over his or her actions regardless of any external factors. Analyzing the human brain's development over a lifetime proves people have the potential for cognitive reasoning and to make their own decisions.

Casado has argued “the inevitability of free will is such that if one considers freedom an illusion, the internal perspective – and one’s own everyday life – would be totally contradictory” ( 2011, p. 369).

On the other hand, while we can determine whether or not we will wake up the next day, it is not an aspect of our free will because we cannot control this. Incidentally, determinism suggests everything happens exactly the way it should have happened because it is a universal law ("Determinism," 2013). In this way, our free will is merely an illusion.

Have a philosophy assignment? Think about buying an essay from Ultius .

The determinism viewpoint

For example, if we decided the previous night that we would wake up at noon, we are unable to control this even with an alarm clock. One, we may die in our sleep. Obviously, as most would agree, we did not choose this. Perhaps we were murdered in our sleep. In that case, was it our destiny to become a victim of violent crimes, or was it our destiny to be murdered as we slept? Others would mention that the murderer was the sole cause of the violence and it their free will to decide to kill.

Therefore, the same people might argue that the murderer deserved a specific punishment. The key question, then, is the free will of the murderer. If we were preordained to die in the middle of the night at the hand of the murderer, then the choice of death never actually existed. Hence, the very question of choice based on free will is an illusion.

Considering that our wills are absolutely subject to the environment in which they are articulated in, we are not obligated to take responsibility for them as the product of their environment. For example, if we were born in the United States, our actions are the result of our country’s laws. Our constitutional laws allow us the right to bear arms and have access to legal representation. In addition, our constitutional laws allow us the freedom to express our thoughts through spoken and written mediums and the freedom to believe in a higher power or not. We often believe we are free to act and do what we want because of our free will.

Harris (2012) has agreed that “free will is more than an illusion (or less), in that it cannot even be rendered coherent” conceptually.

Moral judgments, decisions, and responsibility for free will

Either our wills are determined by prior causes, and we are not responsible for them, or they are a product of chance, and we are not responsible for them” (p. 46). This being the case, can we be deserving if we can so easily deflect the root of our will and actions? Perhaps, our hypothetical murder shot us. It could be argued that gun laws in the United States provided them with the mean to commit murder.

Either the murderer got a hold of a gun by chance or he or she was able to purchase one. While the purchase is not likely, one would have to assume that someone, maybe earlier, purchased the weapon. Therefore, it was actually the buyer’s action that allowed this particular crime to take place. Essentially, both would ‘deserve’ some sort of punishment.

According to The American Heritage Dictionary (2001), the word “deserving” means "Worthy, as of reward or praise” (p. 236), so it regards to punishments, it seems deserving has a positive meaning.

Free will and changing societal views

However, the meanings will change depending on our position. For example, some would suggest that the murderer acted with his or her own free will. However, once they are caught and convicted, they are no longer free in the sense that they can go wherever they want. On the other hand, they are free to think however they want.

If they choose to reenact their crimes in their thoughts, they are free to do so. Some many say, in the case of the murderer, he or she is held responsible for his or her crime, thus he or she deserves blame. However, if the murderer had a mental illness and was unaware he or she committed a crime, should we still consider that the murderer acted with his or her free will? With that in mind, it seems that Strawson’s argument is valid because the murderer was not acting of his or her free will.

Many would consider Strawson to be a “free will pessimist” (Timpe c. Compatibilism, Incompatibilism, and Pessimism, 2006, para. 5). Strawson does not believe we have the ability to act on our own free will. However, he does not believe our actions are predetermined either.

Specifically, in his article “Luck Swallows Everything,” Strawson (1998) has claimed that “One cannot be ultimately responsible for one's character or mental nature in any way at all” (para. 33).

Determining when free will is not applicable

While some would agree young children and disabled adults would not hold any responsibility, others would claim that criminals should bear responsibility when they commit a crime. What if the actions are caused by both nature and nurturing of the parents ? Or, what if they're caused by prior events including a chain of events that goes back before we are born, libertarians do not see how we can feel responsible for them. If our actions are directly caused by chance, they are simply random and determinists do not see how we can feel responsible for them (The Information Philosopher Responsibility n.d.).

After all, one would not argue that murderers are worthy of a positive reward; however, Strawson has argued that we, whether good or evil, do not deserve any types of rewards. Instead, our actions and their consequences are based on luck or bad luck. In order to have ultimate moral responsibility for an action, the act must originate from something that is separate from us.

We consider free will the ability to act or do as we want; however, there is a difference between freedom of action and freedom of will. Freedom of action suggests we are able to physically act upon our desire. In a way, some believe that freedom of will is the choice that precedes that action. In addition to freedom of act or will, free will also suggests we have a sense of moral responsibility. This moral responsibility, however, is not entirely specified. For example, is this responsibility to ourselves or those around us? While this is a question that may never be answered, no matter how many essays are written on the subject, it is one that many consider important to ask, nonetheless.

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Hume on Free Will

But to proceed in this reconciling project with regard to the question of liberty and necessity; the most contentious question of metaphysics, the most contentious science… —David Hume (EU 8.23/95)

It is widely accepted that David Hume’s contribution to the free will debate is one of the most influential statements of the “compatibilist” position, where this is understood as the view that human freedom and moral responsibility can be reconciled with (causal) determinism. Hume’s arguments on this subject are found primarily in the sections titled “Of liberty and necessity”, as first presented in A Treatise of Human Nature (2.3.1–2) and, later, in a slightly amended form, in the Enquiry concerning Human Understanding (sec. 8). Although both contributions share the same title, there are, nevertheless, some significant differences between them. This includes, for example, some substantial additions in the Enquiry discussion as it relates to problems of religion, such as predestination and divine foreknowledge. These differences should not, however, be exaggerated. Hume’s basic strategy and compatibilist commitments remain much the same in both works.

This article will be arranged around a basic contrast between two alternative interpretations of Hume’s compatibilist strategy: the “classical” and “naturalistic” interpretations. According to the classical account, Hume’s effort to articulate the conditions of moral responsibility, and the way they relate to the free will problem, should be understood primarily in terms of his views about the logic of the concepts of “liberty” and “necessity”. In contrast with this, the naturalistic approach maintains that what is essential to Hume’s account of the nature and conditions of responsible conduct is his description of the role that moral sentiment plays in this sphere. How we interpret Hume’s core arguments relating to the free will debate must be understood, on this view, with reference to these psychological claims and concerns (which also accounts for the use of the label “naturalism” in this context). On either account, the contrast between these two interpretations will be of importance, not only for our general understanding of Hume’s philosophical system, but also for any adequate assessment of the contemporary value and relevance of Hume’s views on this subject.

The first two sections of this article present and contrast the classical and naturalistic interpretations. Hume’s views on causation and necessity are highly relevant to both these interpretations. The following three sections sections consider the contemporary significance of Hume’s contribution, particularly as interpreted by the naturalistic account. The sixth and final section examines the relevance of Hume’s views on free will for matters of religion.

• 1. Liberty and Necessity – The Classical Reading

2. Free Will and Moral Sentiment – The Naturalistic Reading

3. hume’s naturalism and strawson’s “reconciling project”, 4. virtue, luck and “the morality system”, 5. moral sense and moral capacity, 6. free will and the problem of religion, references to hume’s works, secondary literature, a brief guide to further reading, other internet resources, related entries, 1. “liberty and necessity” – the classical reading.

For many years the established view of Hume has been that he is a principal and founding figure of classical compatibilism, as located in the empiricist philosophical tradition that stretches from Hobbes, through Hume, on to Mill, Russell, Schlick and Ayer. Classical compatibilists believe, with libertarians, that we need some adequate theory of what free action is, where this is understood as providing the relevant conditions of moral agency and responsibility. Compatibilists, however, reject the view that free action requires the falsity of determinism or that an action cannot be both free and causally necessitated by antecedent conditions. According to the classical compatibilist strategy, not only is freedom compatible with causal determinism, the absence of causation and necessity would make free and responsible action impossible. A free action is an action caused by the agent, whereas an unfree action is caused by some other, external cause. Whether an action is free or not depends on the type of cause, not on the absence of causation and necessity. An uncaused action would be entirely capricious and random and could not be attributed to any agent, much less interpreted as a free and responsible act. Understood this way, the classical compatibilist strategy involves an attempt to explain and describe the logic of our concepts relating to issues of freedom and determinism. It is primarily concerned with conceptual issues rather than with any empirical investigations into our human moral psychology. On the classical interpretation this is how Hume’s core arguments should be understood.

As Hume’s title “Of liberty and necessity” makes plain there are two key ideas in play are “liberty” (freedom) and “necessity” (causation and determinism). In his Abstract of the Treatise Hume emphasizes that his “reasoning puts the whole [free-will] controversy in a new light, by giving a new definition of necessity” (T Abs. 34/ 661). Despite this, the classical interpretation places heavy weight on the significance of his views on the nature of liberty as the relevant basis for explaining Hume’s position on this subject. The strategy that Hume follows, according to this reading, is much the same as that which was pursued by Hobbes. It is the distinction between two kinds of liberty that is, on this account, especially important. Hume’s views on liberty in the Treatise are not, however, entirely consistent with his later views as presented in the Enquiry .

In the Treatise Hume distinguishes between two kinds of liberty.

Few are capable of distinguishing betwixt the liberty of spontaneity , as it is call’d in the schools, and the liberty of indifference ; betwixt that which is oppos’d to violence, and that which means a negation of necessity and causes. The first is even the most common sense of the word; and as ’tis only that species of liberty, which it concerns us to preserve, our thoughts have been principally turn’d towards it, and have almost universally confounded it with the other. (T 2.3.2.1/407–8)

Liberty of spontaneity involves an agent being able to act according to her own willings and desires, unhindered by external obstacles which might constrain or restrict her conduct (e.g., the walls or bars of a prison [T 2.3.1.17/406]). This kind of liberty does not imply an absence of causation and necessity, unless we incorrectly assume that what is caused is somehow compelled or forced to occur. In the Enquiry Hume drops the distinction between two kinds of liberty and instead provides an account of what he calls “hypothetical liberty” (EU 8.23/95). A liberty of this kind involves “a power of acting or not acting, according to the determinations of the will ; that is, if we choose to remain at rest, we may; if we choose to move, we also may.” According to Hume this sort of hypothetical liberty is “universally allowed to belong to every one, who is not a prisoner and in chains” (ibid.). Although Hume is committed to the existence of both liberty of spontaneity and hypothetical liberty, they are not the same. A person may enjoy liberty of spontaneity and act according to the determinations of her own will, and still lack hypothetical liberty. If she chose otherwise her action might still be obstructed (e.g., as with a person who chooses to remain in a room but could not leave if she chose to because the door is locked).

In the Treatise Hume tends to identify liberty with indifference rather than spontaneity and even suggests “that liberty and chance are synonimous” (T 2.3.2.8/412; cf. T 2.3.1.18/407; but see also EU 8.25/96). For this reason he presents his arguments as aiming to show that liberty, so understood ( qua indifference), is, if not contradictory, “directly contrary to experience” (T 2.3.1.18/407). In placing emphasis on this negative task of refuting “the doctrine of liberty or chance ” (T 2.3.2.7/412), Hume is happy to present himself as coming down firmly on the side of “the doctrine of necessity” (T 2.3.2.3/409), which he is careful to define in a way that avoids any confusion between causation and compulsion or force (as is explained in more detail below). The account that Hume offers in the Enquiry strikes a more balanced note. In this work Hume presents his position as not so much a refutation of “the doctrine of liberty” or “free-will” (T 2.3.1.18/407; cf. T 2.1.10.5/312), but rather as a “reconciling project with regard to the question of liberty and necessity” (EU 8.23/95; although even in the Enquiry his references to liberty are not uniformly to spontaneity). Although these differences should be noted, it is important not to exaggerate them. In the Treatise Hume makes clear that liberty of spontaneity is “the most common sense of the word” and the “only… species of liberty, which it concerns us to preserve” (T 2.3.2.1/407–8). It is evident, therefore, that there is also a “reconciling project” implicit in the Treatise and that his arguments against “the doctrine of liberty” remain tightly focused on liberty of indifference.

In both the Treatise and the Enquiry Hume claims that the most original or interesting part of his contribution to free will rests with his definition or understanding of what we mean by necessity (T 2.3.1.18, 2.3.2.4/407, 409–10; see also EU 8.1–3, 8.21–25/80–81, 92–96). It is this issue, Hume claims, that has been the primary obstacle to resolving this controversy. According to Hume there are “two particulars, which we are to consider as essential to necessity, viz. the constant union and the inference of the mind; and wherever we discover these we must acknowledge a necessity” (T 2.3.1.4/400). In order to explain this, Hume begins with a description of causation and necessity as we observe it in “the operations of external bodies” (T 2.3.1.3/399) or in “the actions of matter” (T Abs. 34/ 661). Here we find “not the least traces of indifference or liberty” and we can see that “[e]very object is determin’d by an absolute fate” (T 2.3.1.3/400). What this means, Hume explains, is that we discover that there exist constant conjunctions of objects, whereby resembling objects of one kind are uniformly followed by resembling objects of another kind (e.g., Xs are uniformly followed by Ys). (See, in particular, T 1.3; T Abs. 8–9, 24–26/649–50, 655–57; and also EU 4 and 7). When we experience regularities of this sort we are able to draw relevant inferences, and we deem objects of the first kind causes and those of the second kind their effects.

The crucial point, on Hume’s account, is that we can discover no further “ ultimate connexion ” (T 1.3.6.11/91) between cause and effect beyond our experience of their regular union. There is no perceived or known power or energy in a cause such that we could draw any inference to its effect or by which the cause compels or forces its effect to occur (T 1.3.12.20, 1.3.14.4–7/139, 157–59). Nevertheless, on the basis of our experience of regularities or constant conjunctions of objects, the mind, on the appearance of the first object, naturally draws an inference to that of the other (T 1.3.14.20–22, 31/164–66, 169–70; cf. EU 7.28–29/75–77). In other words, our experience of regularities serves as the basis upon which we can draw inferences to the existence of an object on the appearance of another. All that we find of causation and necessity in bodies or matter, Hume argues, is this conjunction of like objects along with the inference of the mind from one to the other. The relevant question, therefore, is do we find similar features in the operations of human action?

Our experience, Hume maintains, proves that “our actions have a constant union with our motives, tempers, and circumstances” and that we draw relevant inferences from one to the other on this basis (T 2.3.1.4/401). Although there are some apparent irregularities in both the natural and the moral realms, this is entirely due to the influence of contrary or concealed causes of which we are ignorant (T 2.3.1.11–12/403–4; cf. EU 8.15/88).

[T]he union betwixt motives and actions has the same constancy, as that in any natural operations, so its influence on the understanding is also the same, in determining us to infer the existence of one from that of another. If this shall appear, there is no known circumstance, that enters into the connexion and production of the actions of matter, that is not to be found in all the operations of the mind; and consequently we cannot, without a manifest absurdity, attribute necessity to the one, and refuse it to the other. (T 2.3.1.14/404)

In support of this claim Hume cites various regularities that we observe in human society, where class, sex, occupation, age, and other such factors are seen to be reliably correlated with different motives and conduct (T 2.3.1.5–10/401–3). Regularities of this kind make it possible for us to draw the sorts of inferences that are needed for human social life, such as in all our reasoning concerning business, politics, war, and so on (T 2.3.1.15/405; EU 8.17–18/89–90). In the absence of necessity, so understood, we could not survive or live together.

Hume goes on to argue that not only is necessity of this kind essential to human society, it is also “essential to religion and morality” (T 2.3.2.5 410), because of its relevance to the foundations of responsibility and punishment. If the motives of rewards and punishments had no uniform and reliable influence on conduct then law and society would be impossible (ibid.; cp. EU 8.28/ 97–98; see also T 3.3.4.4/609). Beyond this, whether we consider human or divine rewards and punishments, the justice of such practices depends on the fact that the agent has produced or brought about these actions through her own will. The “doctrine of liberty or chance,” however, would remove this connection between agent and action and so no one could be properly held accountable for their conduct (T 2.3.2.6/411). It is, therefore, “only upon the principles of necessity, that a person acquires any merit or demerit from his actions, however the common opinion may incline to the contrary” (ibid.; EU 8.31/99). Read this way, Hume is mostly restating a claim found in many other compatibilist accounts, that necessity (determinism) is needed to support a generally forward-looking, utilitarian theory of moral responsibility and punishment.

Why, then is there so much resistance to “the doctrine of necessity”? The principal explanation for this resistance to “the doctrine of necessity” is found, according to Hume, in confusion about the nature of necessity as we discover it in matter . Although in ordinary life we all rely upon and reason upon the principles of necessity there may well be some reluctance to call this union and inference necessity.

But as long as the meaning is understood, I hope the word can do no harm.… I may be mistaken in asserting, that we have no idea of any other connexion in the actions of body.… But sure I am, I ascribe nothing to the actions of the mind, but what must readily be allow’d of.… I do not ascribe to the will that unintelligible necessity, which is suppos’d to lie in matter. But I ascribe to matter, that intelligible quality, call it necessity or not, which the most rigorous orthodoxy does or must allow to belong to the will. I change, therefore, nothing in the receiv’d systems, with regard to the will, but only with regard to material objects. (T 2.3.2.4/410; cp. EU 8.22/93–94)

The supposition that there is some further power or energy in matter, whereby causes somehow compel or force their effects to occur, is the fundamental source of confusion on this issue. It is this that encourages us to reject the suggestion that our actions are subject to necessity on the ground that this would imply some kind of violence or constraint – something that would be incompatible with liberty of spontaneity. When confusions of this sort are removed, all that remains is the verbal quibble about using the term “necessity” – which is not itself a substantial point of disagreement.

Hume’s suggestion that our ideas of causation and necessity should be understood in terms of constant conjunction of objects and the inference of the mind became a central thread of the classical compatibilist position. A key element of this is his diagnosis of the source of incompatibilism as rooted in a confusion between causation and compulsion. What are we to make of this aspect of the compatibilist strategy? The first thing we need to consider is how this argument stands in relation to the other compatibilist arguments already described? We may begin by noting that Hume’s strategy, as built around his “new definition of necessity” (TA, 34/661), appears to concede that a stronger metaphysical “tie” or “bond” between cause and effect would indeed “imply something of force, violence, and constraint”. From the perspective of the (core) compatibilist argument, as developed around the notion of “liberty of spontaneity” and “hypothetical liberty”, this is a basic mistake. The distinction that is crucial to the original argument is that between actions that have causes that are internal to the agent (i.e., motives and desires of some relevant kind) and those that have external causes. It is the latter that are compelled or constrained actions (such as we find in the case of the prisoner who is in chains: EU 8.23/95). This crucial distinction between actions that are brought about through the agent’s motives and desires and those that are not is not compromised by “metaphysical” (non-regularity) accounts of causation. What is relevant to whether an action was compelled or not is the nature of the cause (i.e., the object), not the nature of the causal relation . Hume’s argument relating to the advantages of his “new definition of necessity” directly challenges this – so one or other of these two claims must be abandoned.

Another crucial claim of the original strategy was that if an agent is to be (justly) held responsible for her actions then she must be causally connected to them in the right way. Hume’s “new definition of necessity” presents some awkward problems for this requirement. More specifically, it may be argued that if we remove “metaphysical” necessity of any kind from our conception of the causal relation, and all objects are “entirely loose and separate... conjoined but never connected ” (EU 7.26/73–4 – Hume’s emphasis), Hume’s own form of compatibilism is vulnerable to the same objection that he raised against the suggestion that free actions are uncaused . That is to say, a mere regular conjunction between events cannot serve to adequately connect the agent with her action. Hume’s theory of causation, therefore, threatens to saw off the compatibilist branch that he is sitting on.

Apart from these “internal” difficulties among Hume’s core arguments, it may also be questioned whether Hume’s alternative account of causation serves to allay or diffuse other (and deeper) worries that libertarians and incompatibilists may have about his proposed “reconciliation”. What libertarians seek – particularly but not exclusively in the 18th c. context – is an account of moral agency that rests with agents who possess active powers of some kind such that they have genuine open alternatives in the same (causal) conditions. Related to this, libertarians also insist on making a distinction between agents who can intervene in the natural causal order and, on the other side, beings who are simply part of the natural causal order and fully integrated within it. Real agency requires the causal series to begin with the agent, not to run through the agent. Hume’s revisionary “new definitions” of causation and necessity satisfies none of these fundamental concerns or requirements. Although Hume suggests that “a few intelligible definitions” should immediately put an end to this controversy (EU 8.2/81), he must have been well aware that he was far from providing the sort of metaphysical resources that libertarians are seeking or satisfying the demands that they place on free, responsible moral agency.

Hume also advances two other explanations for resistance to “the doctrine of necessity”. One of these concerns religion, which we discuss further below. The other concerns, what we might describe as the phenomenology of agency and the way in which it seems to discredit Hume’s necessitarian claims. Hume concedes that when we consider our actions from the agent’s perspective (i.e., the first person perspective) we have “ a false sensation or experience even of the liberty of indifference” (T 2.3.2.2/408 – Hume’s emphasis; cf. EU 8.22n18/94n). The basis of this is that when we are acting we may not experience any “determination of thought” whereby we infer the action to be performed. However, from the spectator’s (third person) perspective the situation is quite different. The spectator will “seldom feel such a looseness and indifference” and will reliably infer actions from an agent’s motives and character. For this reason, although when we act we may find it hard to accept that “we were govern’d by necessity, and that ’twas utterly impossible for us to have acted otherwise” (T 2.3.2.1/407), the spectator’s perspective shows that this is simply a “false sensation”. Put another way, the agent perspective may encourage the view that the future is “open” with respect to how we will act but this supposition is contradicted by the opposing spectator perspective, which is generally reliable. It is worth adding that this claim is consistent with Hume’s account in the Enquiry of “hypothetical liberty”. There is no contradiction between a spectator being able to reliably infer how an agent will act and the fact that how that agent will act depends on how he wills in these circumstances.

The above interpretation suggests that Hume’s primary aim in his discussion “Of liberty and necessity” is to defend an account of moral freedom understood in terms of “liberty of spontaneity”. Our tendency to confuse this form of liberty with indifference is a result of a mistaken understanding of the nature of causation and necessity. The significance of Hume’s contribution, on this interpretation, rests largely with his application of his “new definition of necessity” to this issue. All this is, in turn, generally consistent with arguments by leading representatives of classical compatibilism who came after Hume (viz. Mill, Russell, Schlick, Ayer, et al). If this is an accurate and complete account of Hume’s approach then it is liable to all the objections that have been levelled against the classical compatibilist view.

The first and most obvious of these objections is that “liberty of spontaneity” is a wholly inadequate conception of moral freedom. Kant, famously, describes this account of moral freedom as a “wretched subterfuge” and suggests that a freedom of this kind belongs to a clock that moves its hands by means of internal causes. If our will is itself determined by antecedent natural causes, then we are no more accountable for our actions than any other mechanical object whose movements are internally conditioned. Individuals who enjoy nothing more than a liberty of this nature are, the incompatibilist claims, little more than “robots” or “puppets” subject to the play of fate. This general line of criticism, targeted against any understanding of moral freedom in terms of “spontaneity”, leads directly to two further important criticisms.

The incompatibilist maintains that if our willings and choices are themselves determined by antecedent causes then we could never choose otherwise than we do. Given the antecedent causal conditions, we must always act as we do. We cannot, therefore, be held responsible for our conduct since, on this account, we have no “genuine alternatives” or “open possibilities” available to us. Incompatibilists, as already noted, do not accept that Hume’s notion of “hypothetical liberty”, as presented in the Enquiry , can deal with this objection. It is true, of course, that hypothetical liberty leaves room for the truth of conditionals that suggest that we could have acted otherwise if we had chosen to do so. However, it still remains the case, the incompatibilist argues, that the agent could not have chosen otherwise given the actual circumstances. Responsibility, they claim, requires categorical freedom to choose otherwise in the same circumstances. Hypothetical freedom alone will not suffice. One way of expressing this point in more general terms is that the incompatibilist holds that for responsibility we need more than freedom of action, we also need freedom of will – understood as a power to choose between open alternatives. Failing this, the agent has no ultimate control over her conduct.

Hume’s effort to draw a distinction between free and unfree (i.e., compelled) action itself rests on a distinction between internal and external causes. Critics of compatibilism argue that this – attractively simple – distinction is impossible to maintain. It seems obvious, for example, that there are cases in which an agent acts according to the determinations of his own will but is nevertheless clearly unfree. There are, in particular, circumstances in which an agent may be subject to, and act on, desires and wants that are themselves compulsive in nature (e.g., as with a drug addict or kleptomaniac). Desires and wants of this kind, it is claimed, limit and undermine an agent’s freedom no less than external force and violence. Although it may be true that in these circumstances the agent is acting according to his own desires or willings, it is equally clear that such an agent is neither free nor responsible for his behavior. It would appear, therefore, that we are required to acknowledge that some causes “internal” to the agent may also be regarded as compelling or constraining. This concession, however, generates serious difficulties for the classical compatibilist strategy. It is no longer evident, given this concession, which “internal” causes should be regarded as “constraining” or “compelling” and which should not. Lying behind this objection is the more fundamental concern that the spontaneity argument presupposes a wholly inadequate understanding of the nature of excusing and mitigating considerations.

Finally, on this reading, Hume is understood as defending an essentially forward-looking and utilitarian account of moral responsibility. Following thinkers like Thomas Hobbes, Hume points out that rewards and punishments serve to cause people to act in some ways and not in others, which is clearly a matter of considerable social utility (T 2.3.2.5/410; EU 8.2897–98). This sort of forward-looking, utilitarian account of responsibility has been further developed by a number of other compatibilists with whom Hume is often closely identified (e.g., Moritz Schlick and J.J.C. Smart). Forward-looking, utilitarian accounts of responsibility of this kind have been subject to telling criticism. The basic problem with any account of this kind, incompatibilists have argued, is that they are entirely blind to matters of desert and so lack the required (backward-looking) retributive element that is required in this sphere. Moreover, any theory of responsibility of this kind, critics say, is both too wide and too narrow. It is too wide because it would appear to make children and animals responsible; and it is too narrow because it implies that those who are dead and beyond the reach of the relevant forms of “treatment” are actually responsible for their actions. For all these reasons, critics argue, we should reject compatibilist theories constructed along the lines of these distinctions.

What we need to ask now is to what extent the classical interpretation serves to capture the essentials of Hume’s position on this subject? From the perspective of the alternative naturalistic reading there are two fundamental flaws in the classical reading:

First, and foremost, the classical reading fails to provide any proper account of the role of moral sentiment in Hume’s understanding of (the nature and conditions) of moral responsibility. Part of the explanation for this is that the classical interpretation treats Hume’s views on free will in isolation from other parts of his philosophical system. In particular, it fails to adequately integrate his discussion of free will with his theory of the passions (T 2.1 and 2.2). We are more vulnerable to this mistake if we rely too heavily on Hume’s discussion “Of liberty and necessity” as presented in the Enquiry .

Second, and related to the first issue, the classical reading suggests an overly simple, if not crude, account of the relationship between freedom and moral responsibility. Whereas the classical account suggests that responsibility may be analyzed directly in terms of free (or voluntary) action, the naturalistic interpretation suggests a very different picture of this relationship. It would not be correct, for example, to interpret Hume as endorsing what J.L. Mackie has called “the straight rule of responsibility”: which is that “an agent is responsible for all and only his intentional actions” (Mackie, 1977): 208; and also 221–2). This is, nevertheless, a view that the classical interpretation encourages.

In order to see where the classical interpretation goes wrong we need to begin with an examination of Hume’s arguments in support of the claim that necessity is essential to morality and that “indifference” would make morality impossible (T 2.3.2.5–7/410–2).

In order to understand the relevance of necessity for the conditions of holding a person responsible we we need to understand the workings of “the regular mechanism” of the indirect passions (DP 6.19). In his discussion of love and hatred Hume says:

One of these suppositions, viz. that the cause of love and hatred must be related to a person or thinking being, in order to produce these passions, is not only probable, but too evident to be contested. Virtue and vice, when consider’d in the abstract… excite no degree of love and hatred, esteem or contempt towards those, who have no relation to them. (T 2.2.1.7/331)

Our virtues and vices are not the only causes of love and hatred. Wealth and property, family and social relations, bodily qualities and attributes may also generate love or hate (T 2.1.2.5; 2.1.7.1–5/279, 294f; DP 2.14–33). It is, nevertheless, our virtues and vices, understood as pleasurable or painful qualities of mind, that are “the most obvious causes of these passions” (T 2.1.7.2/295; cp. 3.1.2.5/473; and also 3.3.1.3/574–5). In this way, by means of the general mechanism of the indirect passions, virtue and vice give rise to that “faint and imperceptible” form of love and hatred which constitutes the moral sentiments. This is essential to all our ascriptions of moral responsibility.

Hume makes clear that it is not actions, as such, that give rise to our moral sentiments but rather our more enduring or persisting character traits (T 2.2.3.4/348–9; and also 3.3.1.4–5/575). The crucial passage in his discussion “Of liberty and necessity” is the following:

Actions are by their very nature temporary and perishing; and where they proceed not from some cause in the characters and disposition of the person, who perform’d them, they infix not themselves upon him, and can neither redound to his honour, if good, nor infamy, if evil. The action itself may be blameable… But the person is not responsible for it; and as it proceeded from nothing in him, that is durable or constant, and leaves nothing of that nature behind it, ‘tis impossible he can, upon its account, become the object of punishment or vengeance. (T 2.3.2.6/411; cp. EU 8.29/98; see also T 3.3.3.4/575: “If any action…”)

Further below, in Book II, Hume expands on these remarks:

‘Tis evident, that when we praise any actions, we regard only the motives that produc’d them, and consider the actions as signs or indications of certain principles in the mind and temper. The external performance has no merit. We must look within to find the moral quality. This we cannot do directly; and therefore fix our attention on actions, as on external signs. But these actions are still consider’d as signs; and the ultimate object of our praise and approbation is the motive, that produc’d them. (T 3.2.1.2/477; cp. 3.2.1.8/479; EU 8.31/99)

In these two passages Hume is making two distinct but related points. First, he maintains that “action”, considered as an “external performance” without any reference to the motive or intention that produced it, is not itself of moral concern. It is, rather, the “internal” cause of the action that arouses our moral sentiments. It is these aspects of action that inform us about the mind and moral character of the agent. Second, the moral qualities of an agent that arouse our moral sentiments must be “durable or constant” – they cannot be “temporary and perishing” in nature in the way actions are. This second condition on the generation of moral sentiment is itself a particular instance of the more general observation that Hume has made earlier on in Book II that the relationship between the quality or feature that gives rise to the indirect passions (i.e., its cause) and the person who is the object of the passion must not be “casual or inconstant” (T 2.1.6.7/293). It is, nevertheless, the first point that is especially important for our present purpose of understanding why necessity is essential to morality.

In order to know anyone’s motives and character we require inference, from their actions to their motives and character (T 2.1.11.3; 3.3.1.7/317, 576). Without knowledge of anyone’s character no sentiment of approbation or blame would be aroused in us. Without inferences moving in this direction – from action to character (as opposed to from character to actions) – no one would be an object of praise or blame and, hence, no one would be regarded as morally responsible. In these circumstances, praising and blaming would be psychologically impossible. Along the same lines, external violence, like liberty of indifference, also makes it impossible to regard someone as an object of praise or blame. When an action is produced by causes external to the agent we are led away from the agent’s character. Clearly, then, actions that are either uncaused or caused by external factors cannot render an agent responsible, not because it would be unreasonable to hold the person responsible, but rather because it would be psychologically impossible to hold the person responsible, where this stance is understood in terms of the operation of the moral sentiments. It is in this way that Hume brings his observations concerning the operation of the indirect passions to bear on his claim that necessity is essential to morality and, in particular, to our attitudes and practices associated with responsibility and punishment.

In light of this alternative account, we may conclude that the nature of Hume’s compatibilist strategy is significantly misrepresented by the classical interpretation. Hume’s arguments purporting to show that necessity is essential to morality are intimately connected with his discussion of the indirect passions and the specific mechanism that generates the moral sentiments. Whereas the classical interpretation construes his arguments as conceptual or logical in nature, the naturalistic interpretation presents Hume as concerned to describe the circumstances under which people are felt to be responsible. Interpreted this way, Hume’s arguments constitute a contribution to descriptive moral psychology and, as such, they are an important part of his wider program to “introduce the experimental method of reasoning into moral subjects” (which is the subtitle of the Treatise ).

The next question to consider is whether or not the issues that divide the classical and naturalistic interpretations are of any contemporary significance or interest? The first thing to be said about this is that from a contemporary perspective, classical compatibilism seems too crude an account of both freedom and moral responsibility and very few philosophers would still press the claim that incompatibilist prejudices can be explained simply in terms of confusion about necessity arising from a conflation between causation and compulsion. In contrast with this, Hume’s concern with the role and relevance of moral sentiment for our understanding of the free will problem anticipates several key features of P.F. Strawson’s highly influential contribution to the contemporary debate. Strawson’s “Freedom and Resentment” [hereafter FR] is arguably the most important and influential paper concerning the free will problem published in the second half of the twentieth century. The most striking affinity between the approaches taken by Hume and Strawson is their shared appeal to the role of moral sentiments or reactive attitudes, which both use as a way of discrediting any supposed sceptical threat arising from the thesis of determinism.

On Strawson’s account, both classical compatibilists (whom he refers to as “optimists”) and libertarians (whom he refers to as “pessimists”, because they suppose determinism threatens moral responsibility) make a similar mistake of “over-intellectualizing the facts” by seeking to provide some sort of “external ‘rational’ justification” for moral responsibility (FR, 81). The classical compatibilist does this on the basis of a “one-eyed utilitarianism”, whereas the libertarian, seeing that something vital is missing from the classical compatibilist account, tries to plug the gap with “contra-causal freedom” – which Strawson describes as “a pitiful intellectualist trinket” (FR, 81). Against views of these kinds, Strawson argues that we should focus our attention on the importance of reactive attitudes or moral sentiments in this context. By this means he hopes to find some middle ground whereby he can “reconcile” the two opposing camps. Our reactive attitudes or moral sentiments, Strawson argues, should be understood in terms of our natural human emotional responses to the attitudes and intentions that human beings manifest towards each other. We expect and demand some degree of good will and due regard and we feel resentment or gratitude depending on whether or not this is shown to us (FR, 66–7). Granted that these emotions are part of our essential human make-up, and are naturally triggered or aroused in relevant circumstances, it is still important to recognize that these responses are in some measure under rational control and we can “modify or mollify” them in light of relevant considerations (FR, 68).

There are two kinds of consideration that Strawson distinguishes that may require us to amend or withdraw our reactive attitudes. First, there are considerations that we may describe as exemptions, where we judge that an individual is not an appropriate or suitable target of any reactive attitudes. These are cases where a person may be viewed as “psychologically abnormal” or “morally underdeveloped” (FR, 68; and also 71–2). On the other hand, even where exemptions of this sort do not apply, ordinary excusing considerations may nevertheless require us to alter or change our particular reactive attitudes as directed toward some individual (FR, 68). Considerations of this kind include cases where an agent acts accidentally, or in ignorance, or was subject to physical force of some kind. Where these considerations apply we may come to recognize that the conduct in question, properly interpreted, does not lack the degree of good will or due regard that we may demand. Even if some injury has occurred, no malice or lack of regard has been shown to us. However, the crucial point for Strawson is that while our reactive attitudes may well be modified or withdrawn in these circumstances, there is no question of us altogether abandoning or suspending our reactive attitudes (FR, 71–3). In particular, there is nothing about the thesis of determinism that implies that either exemptions or excuses, as Strawson has described them, apply or hold universally (FR, 70–1). Moreover, and more controversially, Strawson also maintains that even if determinism did provide some “theoretical” basis for drawing this sceptical conclusion, any such policy is “for us as we are, practically inconceivable” (FR, 71). In other words, according to Strawson our natural commitment to the fabric of moral sentiment insulates us from any possible global sceptical threat to the whole fabric of moral responsibility based on theoretical worries about the implications of determinism.

If we read Hume along the lines of the classical interpretation, then his position on these issues looks as if it accords very closely with the typical “optimist” strategy associated with such thinkers as Schlick. The classical interpretation, however, entirely overlooks the role of moral sentiment in Hume’s reconciling strategy. It emphasizes the relevance of the (supposed) confusion between causation and compulsion in order to explain the more fundamental confusion about the nature of liberty (i.e., why philosophers tend to confuse liberty of spontaneity with liberty of indifference). With these features of Hume’s position established, the classical interpretation points to Hume’s remarks concerning the social utility of rewards and punishments and the way in which they depend on the principles of necessity. From this perspective, Hume’s discussion of freedom and necessity clearly constitutes a paradigmatic and influential statement of the “optimist’s” position. So interpreted, Hume must be read as a thinker, like Schlick, who has “over-intellectualized the facts” on the basis of a “one-eyed-utilitarianism”; one who has ignored “that complicated web of attitudes and feelings” which Strawson seeks to draw our attention to. In this way, we are encouraged to view Hume as a prime target of Strawson’s attack on the “optimist” position.

The naturalistic interpretation, by contrast, makes it plain that any such view of Hume’s approach and general strategy is deeply mistaken. Hume, no less than Strawson, is especially concerned to draw our attention to the facts about human nature that are relevant to a proper understanding of the nature and conditions of moral responsibility. More specifically, Hume argues that we cannot properly account for moral responsibility unless we acknowledge and describe the role that moral sentiment plays in this sphere. Indeed, unlike Strawson, Hume is much more concerned with the detailed mechanism whereby our moral sentiments are aroused, and thus he is particularly concerned to explain the relevance of spontaneity, indifference, and necessity to the functioning of moral sentiment. To this extent, therefore, Hume’s naturalistic approach is more tightly woven into his account of the nature of necessity and moral freedom. In sum, when we compare Hume’s arguments with Strawson’s important and influential discussion, it becomes immediately apparent that there is considerable contemporary significance to the contrast between the classical and naturalistic interpretations of Hume’s reconciling strategy.

The overall resemblance between Hume’s and Strawson’s strategy in dealing with issues of freedom and responsibility is striking. The fundamental point that they agree about is that we cannot understand the nature and conditions of moral responsibility without reference to the crucial role that moral sentiment plays in this sphere. This naturalistic approach places Hume and Strawson in similar positions when considered in relation to the views of the pessimist and the optimist. The naturalistic approach shows that, in different ways, both sides of the traditional debate fail to properly acknowledge the facts about moral sentiment. Where Hume most noticeably differs from Strawson, however, is on the question of the “general causes” of moral sentiment. Strawson largely bypasses this problem. For Hume, this is a crucial issue that must be settled to understand why necessity is essential to responsibility and why indifference is entirely incompatible with the effective operation of the mechanism that responsibility depends on.

We have noted that the classical and naturalistic interpretations differ in how they account for the relationship between freedom and responsibility. According to the classical interpretation responsibility may be analysed directly in terms of free action, where this is understood simply in terms of an agent acting according to her own will or desires. While classical compatibilists reject the incompatibilist suggestion that free and responsible action requires indeterminism or any special form of “moral causation” they are, nevertheless, both agreed that a person can be held responsible if and only if she acts freely. On the naturalistic interpretation, however, Hume rejects this general doctrine, which we may call “voluntarism”.

Hume maintains that it is a matter of “the utmost importance” for moral philosophy that action must be indicative of durable qualities of mind if a person is to be held accountable for it (T 3.3.1.4/575). This claim is part of Hume’s more general claim that our indirect passions (including our moral sentiments) are aroused and sustained only when the pleasurable or painful qualities concerned (e.g. the virtues and vices) stand in a durable or constant relation with the person who is their object (T 2.1.6.7/292–3; DP 2.11). In the case of actions, which are “temporary and perishing”, no such lasting relation is involved unless action is suitably tied to character traits of some kind. Two important issues arise out of this that need to be carefully distinguished.

(1) Does Hume hold that all aspects of virtue for which a person is subject to moral evaluation (i.e., approval and disapproval) must be voluntarily expressed? That is to say, are virtues and vices to be assessed entirely on the basis of an agent’s deliberate choices and intentional actions? (2) Granted that virtues and vices are to be understood in terms of a person’s pleasant or painful qualities of mind, to what extent are these traits of character voluntarily acquired (i.e., acquired through the agent’s own will and choices)?

Hume’s answer to both questions is clear. He denies that voluntary or intentional action is the sole basis on which we may assess a person’s virtues and vices. Furthermore he also maintains that moral character is, for the most part, involuntarily acquired. The second claim does not, of course, commit him to the first. Nor does the first commit him to the second, since a person could voluntarily acquire traits that, once acquired, may be involuntarily expressed or manifest. Plainly the combination of claims that Hume embraces on this issue commits him to a position that radically deflates the significance and importance of voluntariness in relation to virtue – certainly in comparison with some familiar alternative accounts (e.g. as in Aristotle).

Let us consider, first, the relevance of voluntariness to the expression of character. As we have already noted, Hume does take the view that actions serve as the principal way in which we learn about a person’s character (T 3.3.1.5/575). Action is produced by the causal influence of our desires and willings. The interpretation and evaluation of action must, therefore, take note of the particular intention with which an action was undertaken. Failing this, we are liable to attribute character traits to the agent that he does not possess (and consequently unjustly praise or blame him). Although intention and action do have a significant and important role to play in the assessment of moral character, Hume also maintains that there are other channels through which character may be expressed. More specifically, a virtuous or vicious character can be distinguished by reference to a person’s “wishes and sentiments,” as well as by the nature of the person’s will (T 3.3.1.5/575). Feelings, desires and sentiments manifest themselves in a wide variety of ways – not just through willing and acting. A person’s “countenance and conversation” (T 2.1.11.3/317), deportment or “carriage” (EU 8.15/88), gestures (EU 8.9/85), or simply her look and expression, may all serve as signs of character and qualities of mind that may be found to be pleasant or painful. Although we may enjoy some limited degree of control over our desires and passions, as well as how they are expressed, for the most part our emotional states and attitudes arise in us involuntarily and may even be manifest or expressed against our will.

We may now turn to the further question concerning Hume’s understanding of the way in which virtues and vices are acquired and, in particular, to what extent they are shaped and conditioned by our own choices. It is Hume’s view that, by and large, our character is conditioned and determined by factors independent of our will. In the sections “Of liberty and necessity” (T 2.3.1–2; EU 8) he argues that not only do we observe how certain characters will act in specific circumstances, we also observe how circumstances condition character. Among the factors that determine character, he claims, are bodily condition, age, sex, occupation and social station, climate, religion, government, and education (T 2.3.1.5–10/401–03; EU 8.7–15/83–8; see esp. EU 8.11/85–6: “Are the manners ...”). These various causal influences account for “the diversity of characters, prejudices, and opinions” (EU 8.10/85). Any accurate moral philosophy, it is argued, must acknowledge and take note of the forces that “mould the human mind from its infancy” and which account for “the gradual change in our sentiments and inclinations” through time (EU 8.11/86). The general force of these observations is to establish that “the fabric and constitution of our mind no more depends on our choice, than that of our body” (ESY 168; see also T 3.3.4.3/608; ESY 140, 160, 579).

Critics of Hume’s position on this subject will argue that if a person has little or no control over the factors that shape her character then virtue and vice really would be, in these circumstances, matters of mere good or bad fortune and no more a basis for moral concern than bodily beauty or ugliness. (See Reid 1969: 261: “What was, by an ancient author, said of Cato…”.) If people are responsible for the character that their actions and feelings express, then they must have acquired that character voluntarily. Hume’s reply to this line of criticism is that we can perfectly well distinguish virtue and vice without making any reference to the way that character is acquired. Our moral sentiments are reactions or responses to the moral qualities and character traits that people manifest in their behavior and conduct, and thus need not be withdrawn simply because people do not choose or voluntarily acquire these moral characteristics. Hume does recognize, of course, that we do have some limited ability to amend and alter our character. In particular, Hume acknowledges that we can cultivate and improve our moral character, in some measure, through self-criticism and self-understanding. Nevertheless, the points he emphasizes are that all such efforts are limited in their scope and effect (ESY 169) and that, beyond this, “a man must be, before-hand, tolerably virtuous” for such efforts of “reformation” to be undertaken in the first place.

Hume’s views about the relationship between virtue and voluntariness do much to explain one of the most controversial aspects of his theory of virtue: his view that the natural abilities should be incorporated into the virtues and vices (T 3.3.4; EM App 4). With respect to this issue he makes two key points. The first is that natural abilities (i.e., intelligence, imagination, memory, wit, etc.) and moral virtues more narrowly understood are “equally mental qualities” (T 3.3.4.1/606). Second, both of them “equally produce pleasure” and thus have “an equal tendency to produce the love and esteem of mankind” (T 3.3.4.1/606–07). In common life, people “naturally praise or blame whatever pleases or displeases them and thus regard penetration as much a virtue as justice” (T 3.3.4.4/609). (See, e.g., Hume’s sardonic observation at EM App. 4.5/315: “It is hard to tell...”) Beyond all this, as already noted, any distinction between the natural abilities and moral virtues cannot be based on the consideration that the natural abilities are for the most part involuntarily acquired, since this also holds true for the moral virtues more narrowly conceived. It is, nevertheless, Hume’s view that the voluntary/involuntary distinction helps to explain “why moralists have invented” the distinction between natural abilities and moral virtues. Unlike moral qualities, natural abilities “are almost invariable by any art or industry” (T 3.3.4.4/609). In contrast with this, moral qualities, “or at least, the actions that proceed from them, may be chang’d by the motives of rewards and punishments, praise and blame” (T 3.3.4.4/609). In this way, according to Hume, the significance of the voluntary/involuntary distinction is largely limited to our concern with the regulation of conduct in society. To confine our understanding of virtue and vice to these frontiers is, however, to distort and misrepresent its very nature and foundation in human life and experience. (For more on Hume’s views on virtue in relation to his position on free will see Russell, 2013.)

These observations regarding Hume and the doctrine of voluntarism are of considerable relevance to the contemporary ethical debate as it concerns what Bernard Williams has described as “the morality system” (Williams, 1985: Chp. 10). Although Williams’ (hostile) account of the morality system is multifaceted and defies easy summary, its core features are clear enough. The concept that Williams identifies as fundamental to the morality system is its special notion of obligation. Flowing from this special concept of obligation are the related concepts of right and wrong, blame and voluntariness. When agents voluntarily violate their obligations they do wrong and are liable to blame and some measure of retribution. To this extent the morality system, so conceived, involves what Williams calls “the blame system”, which focuses on particular acts (Williams, 1985: 194). According to Williams there is pressure within the blame system “to require a voluntariness that will be total and will cut through character and psychological or social determinism, and allocate blame and responsibility on the ultimately fair basis of the agent’s own contribution, no more and no less” (Williams, 1985: 194).

One reason why the morality system places great weight on the importance of voluntariness is that it aspires to show that morality – and moral responsibility in particular – somehow “transcends luck” (Williams, 1985: 195). This is required to ensure that blame is allocated in a way that is “ultimately fair”. Despite the obvious challenges this requirement poses, compatibilists have typically tried to satisfy these aspiration of the morality system by way of offering a variety of argument to show that compatibilist commitments do not render us vulnerable to the play of fate or luck in our moral lives (e.g. Dennett, 1984). Hume, however, makes little effort to satisfy these aspirations. (A point that Williams notes in Williams, 1995: 20n12.) In the final analysis, Hume claims, just as every body or material object “is determin’d by an absolute fate to a certain degree and direction of its motion, and can no more depart from that precise line, in which it moves, than it can convert itself into an angel, or spirit, or any superior substance” (T 2.3.1.3/400), so too our conduct and character is similarly subject to an “absolute fate” as understood in terms of the inescapable “bonds of necessity” (T 2.3.2.2/408). In these fundamental respects, therefore, Hume takes the view, along with Williams, that morality does not elude either fate or luck. In this Hume, perhaps, shares more with the ancient Greeks than he does with those moderns who embrace the aspirations of the morality system (see, e.g., Williams, 1993).

From a critical perspective, it may be argued that there remains a significant gap in Hume’s scheme as we have so far described it. Even if we discard the aspirations of the morality system, any credible naturalistic theory of moral responsibility needs to be able to provide some account of the sorts of moral capacity involved in exempting conditions, whereby we deem some individuals and not others as appropriate targets of moral sentiments or “reactive attitudes”. As it stands, what Hume has to say on this subject is plainly inadequate. According to Hume, it is an ultimate inexplicable fact about our moral sentiments (qua calm forms of the indirect passions of love and hate) that they are always directed at people, either ourselves or others. This account leaves us unable say why some people are not appropriate objects of moral sentiments (e.g. children, the insane, and so on). There are, however, several available proposals for dealing with this gap. Perhaps the most influential proposal is to adopt some general theory of reason-responsiveness or rational self-control. According to accounts of this kind, responsible agents need to have control over their actions, where this involves performing “those actions intentionally, while possessing the relevant sorts of normative competence: the general ability to grasp moral requirements and to govern one’s conduct by light of them” (Wallace, 1994: 86). While proposals of this general kind help to plug a large gap in Hume’s theory, they also suggest a particular understanding of moral responsibility that is not entirely in keeping with Hume’s own account.

There are two points of divergence that are especially significant with respect to to issue. First, rational self-control may be explained, as it is on Wallace’s account, in terms of specifically Kantian conceptions of practical reason and moral agency (Wallace, 1994: 12–17). Even if commitments of this kind are avoided, theories of this kind are still too narrowly based on moral capacity as it relates solely to actions and intentions. On Hume’s account, moral capacity must be related to wider patterns and dispositions of feeling, desire and character. The scope of moral evaluation should not be reduced or limited to concern with (fleeting and momentary) acts of will modelled after legal paradigms. Moral capacity must be exercised and manifest in a larger and more diverse set of propensities and abilities that make up moral character, including the operation of moral sentiment itself.

Second, and related to the previous point, although Hume does not provide any substantial or robust theory of moral capacity, it is possible to find, within what he provides, material that suggests a less “rationalistic” understanding of moral capacity. It may be argued, for example, that in Hume’s system there is an intimate and important relationship between moral sense and virtue. Our moral sense should be understood in terms of our general capacity to feel and direct moral sentiments at both ourselves and at others. Hume points out that children acquire the artificial virtues, involving the conventions of justice, by way not only of learning their advantages but also learning to feel the relevant moral sentiments when these conventions are violated (T 3.2.3.26/500–01). The mechanism of the moral sentiments both cultivates and maintains the artificial virtues. Hume has less to say about the role of moral sentiment in relation to the natural virtues but similar observations would seem to apply. As children grow up and mature they become increasingly aware that their qualities of character affect both others and themselves and that these will inevitably give rise to moral sentiments in the people they will deal with. This entire process of becoming aware of the moral sentiments of others, and “surveying ourselves as we appear to others” (T 3.3.1.8, 3.3.1.26, 3.3.1.30, 3.3.6.6/576–7, 589, 591, 620; EM 9.10, App. 4.3/276, 314) surely serves to develop the natural as well as the artificial virtues. Along these lines, Hume maintains that this disposition to “survey ourselves” and seek our own “peace and satisfaction” is the surest guardian of every virtue (EM 9.10/276). Any person who entirely lacks this disposition will be shameless and will inevitably lack all the virtues that depend on moral reflection for their development and stability.

If this conjecture regarding the intimate or internal relationship between virtue and moral sense is correct, then it does much to explain and account for the range of exemptions that are required in this area. Hume’s understanding of the operation of moral sentiment is not simply a matter of enjoying pleasant and painful feelings of a peculiar kind (T 3.1.2.4/472). On the contrary, the moral evaluation of character involves the activity of both reason and sentiment. The sort of intellectual activities required include not only learning from experience the specific pleasant and painful tendencies of certain kinds of character and conduct, as well as the ability to distinguish accurately among them, but also the ability to evaluate character and conduct from “some steady and general point of view” (T 3.3..15/581–2; EM 5.41–2/227–8). Clearly, then, insofar as the cultivation and stability of virtue depends on moral sense, it also requires the intellectual qualities and capacities involved in the exercise of moral sense. (One way of understanding this is to say that moral sense and moral reflection serve as the counterparts to practical wisdom or phronesis in Aristotle’s moral theory. See Russell, 2006.) Given this, an animal, an infant, or an insane person will lack the ability to perform the intellectual tasks involved in the production of moral sentiment. We cannot, therefore, expect virtues that are dependent on these abilities and intellectual activities to be manifest in individuals who lack them, or when they are damaged or underdeveloped.

Interpreting Hume in these terms not only serves to fill what looks like a large gap in his naturalistic program, it also avoids distorting his own wider ethical commitments by imposing a narrower, rationalistic conception of moral capacity into his naturalistic framework. Beyond this, interpreting moral capacity in these more sentimentalist terms is both philosophically and psychologically more satisfying and plausible. On an account of this kind, there exists a close and essential relationship between being responsible, where this is understood in terms of being an appropriate target of moral sentiments or reactive attitudes, and being able to hold oneself and others responsible, where this is understood as the ability to experience and entertain moral sentiments. It is a merit of Hume’s system, so interpreted, that it avoids “over-intellectualizing” not only what is involved in holding a person responsible, but also what is involved in being a responsible agent.

In the Treatise , as was noted earlier, Hume argues that one of the reasons “why the doctrine of liberty [of indifference] has generally been better receiv’d in the world, than its antagonist [the doctrine of necessity], proceeds from religion, which has been very unnecessarily interested in this question” (T 2.3.2.3/409). He goes on to argue “that the doctrine of necessity, according to my explication of it, is not only innocent, but even advantageous to religion and morality”. When Hume came to present his views afresh in the Enquiry (Sec. 8), he was less circumspect about his hostile intentions with regard to “religion”. In the parallel passage (EU 8.26/96–97), he again objects to any effort to refute a hypothesis “by a pretence to its dangerous consequences to religion and morality”. He goes on to say that his account of the doctrines of liberty and necessity “are not only consistent with morality, but are absolutely essential to its support” (EU 8.26/97). By this means, he makes it clear that he is not claiming that his position is “consistent” with religion. In the final passages of the Enquiry discussion of liberty and necessity (EU 8.32–6/99–103) – passages which do not appear in the original Treatise discussion – Hume makes it plain exactly how his necessitarian principles have “dangerous consequences for religion”.

Hume considers the following objection:

It may be said, for instance, that, if voluntary actions be subjected to the same laws of necessity with the operations of matter, there is a continued chain of necessary causes, pre-ordained and pre-determined, reaching from the original cause of all to every single volition of every human creature… . The ultimate Author of all our volitions is the Creator of the world, who first bestowed motion on this immense machine, and placed all beings in that particular position, whence every subsequent event, by an inevitable necessity, must result. Human action, therefore, either can have no moral turpitude at all, as proceeding from so good a cause; or if they have any turpitude, they must involve our Creator in the same guilt, while he is acknowledged to be their ultimate cause and author. (EU 8.32/99–100)

In other words, the doctrine of necessity produces an awkward dilemma for the theological position: Either the distinction between (moral) good and evil collapses, because everything is produced by a perfect being who intends “nothing but what is altogether good and laudable” (EU 8.33/101), or we must “retract the attribute of perfection, which we ascribe to the Deity” on the ground that he is the ultimate author of moral evil in the world.

Hume treats the first horn of this dilemma at greatest length. He draws on his naturalistic principles to show that the conclusion reached (i.e., that no human actions are evil or criminal in nature) is absurd. There are, he claims, both physical and moral evils in this world that the human mind finds naturally painful, and this affects our sentiments accordingly. Whether we are the victim of gout or of robbery, we naturally feel the pain of such evils (EU 8.34/101–2). No “remote speculations” or “philosophical theories” concerning the good or perfection of the whole universe will alter these natural reactions and responses to the particular ills and evils we encounter. Hence, even if we were to grant that this is indeed the best of all possible worlds – and Hume clearly takes the view that we have no reason to suppose that it is (D 113–4; EU 11.15–22/137–42) – this would do nothing to undermine the reality of the distinction we draw between good and evil (i.e., as experienced on the basis of “the natural sentiments of the human mind”: EU 8.35/103).

What, then, of the alternative view, that God is “the ultimate author of guilt and moral turpitude in all his creatures”? Hume offers two rather different accounts of this alternative – although he does not distinguish them properly. He begins by noting that if some human actions “have any turpitude, they must involve our Creator in the same guilt, while he is acknowledged to be their ultimate cause and author” (EU 8.32/100). This passage suggests that God is also blameworthy for criminal actions in this world, since he is their “ultimate author”. At this point, however, there is no suggestion that the particular human agents who commit these crimes (as preordained by God) are not accountable for them. In the passage that follows this is the position taken.

For as a man, who fired a mine, is answerable for all the consequences whether the train he employed be long or short; so wherever a continued chain of necessary causes is fixed, that Being, either finite or infinite, who produces the first, is likewise the author of all the rest, and must both bear the blame and acquire the praise which belong to them. (EU 8.32/100)

Hume goes on to argue that this rule of morality has even “greater force” when applied to God, since he is neither ignorant nor impotent and must, therefore, have knowingly produced those criminal actions which are manifest in the world. Granted that such actions are indeed criminal, it follows, says Hume, “that the Deity, not man, is accountable for them” (EU 8.32/100; cf. EU 8.33/101).

It is evident that Hume is arguing two points. First, if God is the creator of the world and preordained and predetermined everything that happens in it, then the (obvious) existence of moral evil is attributable to him, and thus “we must retract the attribute of perfection” which we ascribe to him. Second, if God is indeed the ultimate author of moral evil, then no individual human being is accountable for the criminal actions he performs. The second claim does not follow from the first. Moreover, it is clearly inconsistent with Hume’s general position on this subject. As has been noted, in this same context, Hume has also argued that no speculative philosophical theory can alter the natural workings of our moral sentiments. The supposition that God is the “ultimate author” of all that takes place in the world will not, on this view of things, change our natural disposition to praise or blame our fellow human beings. Whatever the ultimate causes of a person’s character and conduct, it will (inevitably) arouse a sentiment of praise or blame in other humans who contemplate it. This remains the case even if we suppose that God also deserves blame for the “moral turpitude” we find in the world. In general, then, Hume’s first formulation of the second alternative (i.e., that God must share the blame for those crimes that occur in the world) is more consistent with his naturalistic principles.

What is crucial to Hume’s polemical purpose in these passages is not the thesis that if God is the author of crimes then his human creations are not accountable for them. Rather, the point Hume is concerned to make (since he does not, in fact, doubt the inescapability of our moral accountability to our fellow human beings) is that the religious hypothesis leads to the “absurd consequence” that God is the ultimate author of sin in this world and that he is, accordingly, liable to some appropriate measure of blame. Hume, in other words, takes the (deeply impious) step of showing that if God exists, and is the creator of the universe, then he is no more free of sin than human beings are. According to Hume, we must judge God as we judge human beings, on the basis of his effects in the world, and we must then adjust our sentiments accordingly. Indeed, there is no other natural or reasonable basis on which to found our sentiments toward God. In certain respects, therefore, we can make better sense of how we (humans) can hold God accountable than we can make sense of how God is supposed to hold humans accountable (i.e., since we have no knowledge of his sentiments , or even if he has any; cf. D 58,114,128–9; ESY 594; but see also LET I/51). It is, of course, Hume’s considered view that it is an egregious error of speculative theology and philosophy to suppose that the universe has been created by a being that bears some (close) resemblance to humankind. The question of the origin of the universe is one that Hume plainly regards as beyond the scope of human reason (see, e.g., EU 1.11–2;11.15–23;11.26–7;12.2634/11–13, 137–42, 144–47, 165; D 36–8,88–9,107). Nevertheless, Hume’s point is plain: On the basis of the (limited) evidence that is available to us, we must suppose that if there is a God, who is creator of this world and who orders all that takes place in it, then this being is indeed accountable for all the (unnecessary and avoidable; D 107) evil that we discover in it.

Although it is evident that Hume’s discussion of free will in the first Enquiry is part of his wider critique of the Christian religion, it is nevertheless widely held that Hume’s earlier discussion “Of liberty and necessity” in the Treatise carries none of this irreligious content or significance. This view is itself encouraged by a more general understanding of the relationship between the Treatise and the first Enquiry which maintains that the Treatise lacks any significant irreligious content (because Hume “castrated” his work and removed most passages of this kind, perhaps including the passages at EU 8.32–6). On this view of things, the elements of Hume’s discussion that are common to both Treatise 2.3.1–2 and Enquiry 8 are themselves without any particular religious or irreligious significance. To show why this view is seriously mistaken would, however, take us wide of our present concerns. (For a more detailed account of Hume’s fundamental irreligious intentions throughout the Treatise see Russell, 2008 and also Russell, 2016.)

Suffice it to note, for our present purposes, that throughout his writings, Hume’s philosophical interests and concerns were very largely dominated and directed by his fundamental irreligious aims and objectives. A basic theme in Hume’s philosophy, so considered, is his effort to demystify moral and social life and release it from the metaphysical trappings of “superstition”. The core thesis of Hume’s Treatise – indeed, of his overall (irreligious or “atheistic”) philosophical outlook – is that moral and social life neither rests upon nor requires the dogmas of Christian metaphysics. Hume’s naturalistic framework for understanding moral and social life excludes not only the metaphysics of libertarianism (e.g., modes of “moral” causation by immaterial agents) but also all further theologically inspired metaphysics that generally accompanies it (i.e., God, the immortal soul, a future state, and so on). The metaphysics of religion, Hume suggests, serves only to confuse and obscure our understanding of these matters and to hide their true foundation in human nature. Hume’s views on the subject of free will and moral responsibility, as presented in the sections “Of liberty and necessity” and elsewhere in his writings, are the very pivot on which this fundamental thesis turns.

In the entry above, we follow the convention given in the Nortons’ Treatise and Beauchamp’s Enquiries : we cite Book. Part. Section. Paragraph; followed by references to the Selby-Bigge/Nidditch editions. Thus T 1.2.3.4/34: will indicate Treatise Bk.1, Pt.2, Sec.3, Para.4/ Selby-Bigge pg.34. References to Abstract [TA] are to the two editions of the Treatise mentioned above (paragraph/page). In the case of the Enquiries we cite Section and Paragraph; followed by page reference to the Selby-Bigge edition. Thus EU 12.1/149 refers to Enquiry Concerning Human Understanding , Sect.12, Para. 1 / Selby-Bigge pg. 149.

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• Frankfurt, Harry, 1971. “Freedom of the Will and the Concept of a Person”, reprinted in G. Watson (ed.), Free Will , Oxford: Oxford University Press, 1982, pp. 81–95.
• Garrett, Don, 1997. Cognition and Commitment in Hume’s Philosophy , Oxford: Oxford University Press, Chapter 6 [Liberty and Necessity].
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• –––, 2012. “Free Will”, in A. Bailey & D. O’Brien (eds.), The Continuum Companion to Hume , London & New York: Continuum.
• Hobbes, Thomas, 1650. The Elements of Law , F. Tonnies (ed.), Cambridge: Cambridge University Press, 1928.
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• Kane, Robert, 2005. A Contemporary Introduction to Free Will , Oxford and New York: Oxford University Press.
• Kemp Smith, Norman, 1941. The Philosophy of David Hume , London: MacMillan, Chapter 20.
• Locke, John, 1689 [1700]. An Essay Concerning Human Understanding , 4th edition, P. Nidditch (ed.), Oxford: Clarendon Press, 1975.
• Mackie, J.L., 1977. Ethics: Inventing right and Wrong , Harmondsworth, Middlesex: Penguin.
• McKenna, Michael, 2004. “Compatibilism”, The Stanford Encyclopedia of Philosophy (Summer 2004 Edition), Edward N. Zalta (ed.), URL = < https://plato.stanford.edu/archives/sum2004/entries/compatibilism/ >.
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• Penelhum, Terence, 1975. Hume , London: Macmillan, Chapter 6: The Will.
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The above citations may be used as the basis for further reading on this subject in the following way. Influential statements of the classical interpretation of Hume’s intentions can be found in Flew (1962), Penelhum (1975) and Stroud (1977). Prominent statements of 20 th century classical compatibilism that are generally taken to follow in Hume’s tracks include Schlick (1939), Ayer (1954) and Smart (1961). Davidson (1963) provides an important statement of the causal theory of action based on broadly Humean principles. A complete statement of the naturalistic interpretation is provided in Russell (1995), esp. Part I. For a critical response to this study see Penelhum (1998; 2000a), and also the earlier exchange between Russell (1983, 1985) and Flew (1984). The contributions by Botterill (2002) and Pitson (2016) follow up on some of the issues that are at stake here. For an account of Hume’s views on punishment – a topic that is closely connected with the problem of free will – see Russell (1990) and Russell (1995 – Chp. 10). For a general account of the 18 th century debate that Hume was involved in see Harris (2005) and Russell (2008), Chap. 16. See also O’Higgins introduction [in Collins (1717)] for further background. The works by Hobbes, Locke, Clarke and Collins, as cited above, are essential reading for an understanding of the general free will debate that Hume was involved in. Smith (1759) is a valuable point of contrast in relation to Hume’s views, insofar as Smith develops a naturalistic theory of responsibility based on moral sentiment (which Strawson follows up on). However, Smith does not discuss the free will issue directly (which is itself a point of some significance). In contrast with this, Reid (1788) is perhaps Hume’s most effective and distinguished contemporary critic on this subject and his contribution remains of considerable interest and value. With respect to Hume’s views on free will as they relate to his more general irreligious intentions see Russell (2008 – esp. Chp. 16). Similar material is covered in Russell (2016). Garrett (1997) provides a lucid overview and careful analysis of Hume’s views on liberty and necessity, which includes discussion of the theological side of Hume’s arguments and concerns. Helpful introductions discussing recent developments in compatibilist thinking, which are of obvious relevance for an assessment of the contemporary value of Hume’s views on this subject, can be found in McKenna (2004) and Kane (2005). Among the various points of contrast not discussed in this article, Frankfurt (1971) is an influential and important paper that aims to advance the classical compatibilist strategy beyond the bounds of accounts of freedom of action. However, as noted in the main text of this article, the work of P.F. Strawson (1962, 1985) is of particular importance in respect of the contemporary significance and relevance of Hume’s naturalistic strategy. Finally, for discussions of Hume’s compatibilism as it relates to his theory of causation see, for example, Russell (1988), Russell (1995), esp. Chaps.1–3, Beebee & Mele (2002), Harris (2005), Chap. 3, Millican (2010), and Berofsky (2012).

How to cite this entry . Preview the PDF version of this entry at the Friends of the SEP Society . Look up topics and thinkers related to this entry at the Internet Philosophy Ontology Project (InPhO). Enhanced bibliography for this entry at PhilPapers , with links to its database.

• Hume Texts Online [Peter Millican]. .
• The Hume Society .
• David Hume , entry by James Fieser, in the Internet Encyclopedia of Philosophy .
• Compatibilism: Can free will and determinism co-exist? , John Perry, in the Stanford News Service .

Clarke, Samuel | compatibilism | determinism: causal | free will | Hume, David | Hume, David: moral philosophy | Hume, David: on religion | incompatibilism: (nondeterministic) theories of free will | incompatibilism: arguments for | luck: moral | moral responsibility | punishment, legal | Reid, Thomas

Acknowledgments

The editors would like to thank Sally Ferguson for noticing and reporting a number of typographical errors in this entry.

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There’s No Such Thing as Free Will

But we’re better off believing in it anyway.

F or centuries , philosophers and theologians have almost unanimously held that civilization as we know it depends on a widespread belief in free will—and that losing this belief could be calamitous. Our codes of ethics, for example, assume that we can freely choose between right and wrong. In the Christian tradition, this is known as “moral liberty”—the capacity to discern and pursue the good, instead of merely being compelled by appetites and desires. The great Enlightenment philosopher Immanuel Kant reaffirmed this link between freedom and goodness. If we are not free to choose, he argued, then it would make no sense to say we ought to choose the path of righteousness.

Today, the assumption of free will runs through every aspect of American politics, from welfare provision to criminal law. It permeates the popular culture and underpins the American dream—the belief that anyone can make something of themselves no matter what their start in life. As Barack Obama wrote in The Audacity of Hope , American “values are rooted in a basic optimism about life and a faith in free will.”

So what happens if this faith erodes?

The sciences have grown steadily bolder in their claim that all human behavior can be explained through the clockwork laws of cause and effect. This shift in perception is the continuation of an intellectual revolution that began about 150 years ago, when Charles Darwin first published On the Origin of Species . Shortly after Darwin put forth his theory of evolution, his cousin Sir Francis Galton began to draw out the implications: If we have evolved, then mental faculties like intelligence must be hereditary. But we use those faculties—which some people have to a greater degree than others—to make decisions. So our ability to choose our fate is not free, but depends on our biological inheritance.

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Galton launched a debate that raged throughout the 20th century over nature versus nurture. Are our actions the unfolding effect of our genetics? Or the outcome of what has been imprinted on us by the environment? Impressive evidence accumulated for the importance of each factor. Whether scientists supported one, the other, or a mix of both, they increasingly assumed that our deeds must be determined by something .

In recent decades, research on the inner workings of the brain has helped to resolve the nature-nurture debate—and has dealt a further blow to the idea of free will. Brain scanners have enabled us to peer inside a living person’s skull, revealing intricate networks of neurons and allowing scientists to reach broad agreement that these networks are shaped by both genes and environment. But there is also agreement in the scientific community that the firing of neurons determines not just some or most but all of our thoughts, hopes, memories, and dreams.

We know that changes to brain chemistry can alter behavior—otherwise neither alcohol nor antipsychotics would have their desired effects. The same holds true for brain structure: Cases of ordinary adults becoming murderers or pedophiles after developing a brain tumor demonstrate how dependent we are on the physical properties of our gray stuff.

Many scientists say that the American physiologist Benjamin Libet demonstrated in the 1980s that we have no free will. It was already known that electrical activity builds up in a person’s brain before she, for example, moves her hand; Libet showed that this buildup occurs before the person consciously makes a decision to move. The conscious experience of deciding to act, which we usually associate with free will, appears to be an add-on, a post hoc reconstruction of events that occurs after the brain has already set the act in motion.

The 20th-century nature-nurture debate prepared us to think of ourselves as shaped by influences beyond our control. But it left some room, at least in the popular imagination, for the possibility that we could overcome our circumstances or our genes to become the author of our own destiny. The challenge posed by neuroscience is more radical: It describes the brain as a physical system like any other, and suggests that we no more will it to operate in a particular way than we will our heart to beat. The contemporary scientific image of human behavior is one of neurons firing, causing other neurons to fire, causing our thoughts and deeds, in an unbroken chain that stretches back to our birth and beyond. In principle, we are therefore completely predictable. If we could understand any individual’s brain architecture and chemistry well enough, we could, in theory, predict that individual’s response to any given stimulus with 100 percent accuracy.

This research and its implications are not new. What is new, though, is the spread of free-will skepticism beyond the laboratories and into the mainstream. The number of court cases, for example, that use evidence from neuroscience has more than doubled in the past decade—mostly in the context of defendants arguing that their brain made them do it. And many people are absorbing this message in other contexts, too, at least judging by the number of books and articles purporting to explain “your brain on” everything from music to magic. Determinism, to one degree or another, is gaining popular currency. The skeptics are in ascendance.

This development raises uncomfortable—and increasingly nontheoretical—questions: If moral responsibility depends on faith in our own agency, then as belief in determinism spreads, will we become morally irresponsible? And if we increasingly see belief in free will as a delusion, what will happen to all those institutions that are based on it?

In 2002, two psychologists had a simple but brilliant idea: Instead of speculating about what might happen if people lost belief in their capacity to choose, they could run an experiment to find out. Kathleen Vohs, then at the University of Utah, and Jonathan Schooler, of the University of Pittsburgh, asked one group of participants to read a passage arguing that free will was an illusion, and another group to read a passage that was neutral on the topic. Then they subjected the members of each group to a variety of temptations and observed their behavior. Would differences in abstract philosophical beliefs influence people’s decisions?

Yes, indeed. When asked to take a math test, with cheating made easy, the group primed to see free will as illusory proved more likely to take an illicit peek at the answers. When given an opportunity to steal—to take more money than they were due from an envelope of $1 coins—those whose belief in free will had been undermined pilfered more. On a range of measures, Vohs told me, she and Schooler found that “people who are induced to believe less in free will are more likely to behave immorally.”

It seems that when people stop believing they are free agents, they stop seeing themselves as blameworthy for their actions. Consequently, they act less responsibly and give in to their baser instincts. Vohs emphasized that this result is not limited to the contrived conditions of a lab experiment. “You see the same effects with people who naturally believe more or less in free will,” she said.

In another study, for instance, Vohs and colleagues measured the extent to which a group of day laborers believed in free will, then examined their performance on the job by looking at their supervisor’s ratings. Those who believed more strongly that they were in control of their own actions showed up on time for work more frequently and were rated by supervisors as more capable. In fact, belief in free will turned out to be a better predictor of job performance than established measures such as self-professed work ethic.

Another pioneer of research into the psychology of free will, Roy Baumeister of Florida State University, has extended these findings. For example, he and colleagues found that students with a weaker belief in free will were less likely to volunteer their time to help a classmate than were those whose belief in free will was stronger. Likewise, those primed to hold a deterministic view by reading statements like “Science has demonstrated that free will is an illusion” were less likely to give money to a homeless person or lend someone a cellphone.

Further studies by Baumeister and colleagues have linked a diminished belief in free will to stress, unhappiness, and a lesser commitment to relationships. They found that when subjects were induced to believe that “all human actions follow from prior events and ultimately can be understood in terms of the movement of molecules,” those subjects came away with a lower sense of life’s meaningfulness. Early this year, other researchers published a study showing that a weaker belief in free will correlates with poor academic performance.

The list goes on: Believing that free will is an illusion has been shown to make people less creative, more likely to conform, less willing to learn from their mistakes, and less grateful toward one another. In every regard, it seems, when we embrace determinism, we indulge our dark side.

Few scholars are comfortable suggesting that people ought to believe an outright lie. Advocating the perpetuation of untruths would breach their integrity and violate a principle that philosophers have long held dear: the Platonic hope that the true and the good go hand in hand. Saul Smilansky, a philosophy professor at the University of Haifa, in Israel, has wrestled with this dilemma throughout his career and come to a painful conclusion: “We cannot afford for people to internalize the truth” about free will.

Smilansky is convinced that free will does not exist in the traditional sense—and that it would be very bad if most people realized this. “Imagine,” he told me, “that I’m deliberating whether to do my duty, such as to parachute into enemy territory, or something more mundane like to risk my job by reporting on some wrongdoing. If everyone accepts that there is no free will, then I’ll know that people will say, ‘Whatever he did, he had no choice—we can’t blame him.’ So I know I’m not going to be condemned for taking the selfish option.” This, he believes, is very dangerous for society, and “the more people accept the determinist picture, the worse things will get.”

Determinism not only undermines blame, Smilansky argues; it also undermines praise. Imagine I do risk my life by jumping into enemy territory to perform a daring mission. Afterward, people will say that I had no choice, that my feats were merely, in Smilansky’s phrase, “an unfolding of the given,” and therefore hardly praiseworthy. And just as undermining blame would remove an obstacle to acting wickedly, so undermining praise would remove an incentive to do good. Our heroes would seem less inspiring, he argues, our achievements less noteworthy, and soon we would sink into decadence and despondency.

Smilansky advocates a view he calls illusionism—the belief that free will is indeed an illusion, but one that society must defend. The idea of determinism, and the facts supporting it, must be kept confined within the ivory tower. Only the initiated, behind those walls, should dare to, as he put it to me, “look the dark truth in the face.” Smilansky says he realizes that there is something drastic, even terrible, about this idea—but if the choice is between the true and the good, then for the sake of society, the true must go.

Smilansky’s arguments may sound odd at first, given his contention that the world is devoid of free will: If we are not really deciding anything, who cares what information is let loose? But new information, of course, is a sensory input like any other; it can change our behavior, even if we are not the conscious agents of that change. In the language of cause and effect, a belief in free will may not inspire us to make the best of ourselves, but it does stimulate us to do so.

Illusionism is a minority position among academic philosophers, most of whom still hope that the good and the true can be reconciled. But it represents an ancient strand of thought among intellectual elites. Nietzsche called free will “a theologians’ artifice” that permits us to “judge and punish.” And many thinkers have believed, as Smilansky does, that institutions of judgment and punishment are necessary if we are to avoid a fall into barbarism.

Smilansky is not advocating policies of Orwellian thought control . Luckily, he argues, we don’t need them. Belief in free will comes naturally to us. Scientists and commentators merely need to exercise some self-restraint, instead of gleefully disabusing people of the illusions that undergird all they hold dear. Most scientists “don’t realize what effect these ideas can have,” Smilansky told me. “Promoting determinism is complacent and dangerous.”

Yet not all scholars who argue publicly against free will are blind to the social and psychological consequences. Some simply don’t agree that these consequences might include the collapse of civilization. One of the most prominent is the neuroscientist and writer Sam Harris, who, in his 2012 book, Free Will , set out to bring down the fantasy of conscious choice. Like Smilansky, he believes that there is no such thing as free will. But Harris thinks we are better off without the whole notion of it.

“We need our beliefs to track what is true,” Harris told me. Illusions, no matter how well intentioned, will always hold us back. For example, we currently use the threat of imprisonment as a crude tool to persuade people not to do bad things. But if we instead accept that “human behavior arises from neurophysiology,” he argued, then we can better understand what is really causing people to do bad things despite this threat of punishment—and how to stop them. “We need,” Harris told me, “to know what are the levers we can pull as a society to encourage people to be the best version of themselves they can be.”

According to Harris, we should acknowledge that even the worst criminals—murderous psychopaths, for example—are in a sense unlucky. “They didn’t pick their genes. They didn’t pick their parents. They didn’t make their brains, yet their brains are the source of their intentions and actions.” In a deep sense, their crimes are not their fault. Recognizing this, we can dispassionately consider how to manage offenders in order to rehabilitate them, protect society, and reduce future offending. Harris thinks that, in time, “it might be possible to cure something like psychopathy,” but only if we accept that the brain, and not some airy-fairy free will, is the source of the deviancy.

Accepting this would also free us from hatred. Holding people responsible for their actions might sound like a keystone of civilized life, but we pay a high price for it: Blaming people makes us angry and vengeful, and that clouds our judgment.

“Compare the response to Hurricane Katrina,” Harris suggested, with “the response to the 9/11 act of terrorism.” For many Americans, the men who hijacked those planes are the embodiment of criminals who freely choose to do evil. But if we give up our notion of free will, then their behavior must be viewed like any other natural phenomenon—and this, Harris believes, would make us much more rational in our response.

Although the scale of the two catastrophes was similar, the reactions were wildly different. Nobody was striving to exact revenge on tropical storms or declare a War on Weather, so responses to Katrina could simply focus on rebuilding and preventing future disasters. The response to 9/11 , Harris argues, was clouded by outrage and the desire for vengeance, and has led to the unnecessary loss of countless more lives. Harris is not saying that we shouldn’t have reacted at all to 9/11, only that a coolheaded response would have looked very different and likely been much less wasteful. “Hatred is toxic,” he told me, “and can destabilize individual lives and whole societies. Losing belief in free will undercuts the rationale for ever hating anyone.”

Whereas the evidence from Kathleen Vohs and her colleagues suggests that social problems may arise from seeing our own actions as determined by forces beyond our control—weakening our morals, our motivation, and our sense of the meaningfulness of life—Harris thinks that social benefits will result from seeing other people’s behavior in the very same light. From that vantage point, the moral implications of determinism look very different, and quite a lot better.

What’s more, Harris argues, as ordinary people come to better understand how their brains work, many of the problems documented by Vohs and others will dissipate. Determinism, he writes in his book, does not mean “that conscious awareness and deliberative thinking serve no purpose.” Certain kinds of action require us to become conscious of a choice—to weigh arguments and appraise evidence. True, if we were put in exactly the same situation again, then 100 times out of 100 we would make the same decision, “just like rewinding a movie and playing it again.” But the act of deliberation—the wrestling with facts and emotions that we feel is essential to our nature—is nonetheless real.

The big problem, in Harris’s view, is that people often confuse determinism with fatalism. Determinism is the belief that our decisions are part of an unbreakable chain of cause and effect. Fatalism, on the other hand, is the belief that our decisions don’t really matter, because whatever is destined to happen will happen—like Oedipus’s marriage to his mother, despite his efforts to avoid that fate.

When people hear there is no free will, they wrongly become fatalistic; they think their efforts will make no difference. But this is a mistake. People are not moving toward an inevitable destiny; given a different stimulus (like a different idea about free will), they will behave differently and so have different lives. If people better understood these fine distinctions, Harris believes, the consequences of losing faith in free will would be much less negative than Vohs’s and Baumeister’s experiments suggest.

Can one go further still? Is there a way forward that preserves both the inspiring power of belief in free will and the compassionate understanding that comes with determinism?

Philosophers and theologians are used to talking about free will as if it is either on or off; as if our consciousness floats, like a ghost, entirely above the causal chain, or as if we roll through life like a rock down a hill. But there might be another way of looking at human agency.

Some scholars argue that we should think about freedom of choice in terms of our very real and sophisticated abilities to map out multiple potential responses to a particular situation. One of these is Bruce Waller, a philosophy professor at Youngstown State University. In his new book, Restorative Free Will , he writes that we should focus on our ability, in any given setting, to generate a wide range of options for ourselves, and to decide among them without external constraint.

For Waller, it simply doesn’t matter that these processes are underpinned by a causal chain of firing neurons. In his view, free will and determinism are not the opposites they are often taken to be; they simply describe our behavior at different levels.

Waller believes his account fits with a scientific understanding of how we evolved: Foraging animals—humans, but also mice, or bears, or crows—need to be able to generate options for themselves and make decisions in a complex and changing environment. Humans, with our massive brains, are much better at thinking up and weighing options than other animals are. Our range of options is much wider, and we are, in a meaningful way, freer as a result.

Waller’s definition of free will is in keeping with how a lot of ordinary people see it. One 2010 study found that people mostly thought of free will in terms of following their desires, free of coercion (such as someone holding a gun to your head). As long as we continue to believe in this kind of practical free will, that should be enough to preserve the sorts of ideals and ethical standards examined by Vohs and Baumeister.

Yet Waller’s account of free will still leads to a very different view of justice and responsibility than most people hold today. No one has caused himself: No one chose his genes or the environment into which he was born. Therefore no one bears ultimate responsibility for who he is and what he does. Waller told me he supported the sentiment of Barack Obama’s 2012 “You didn’t build that” speech, in which the president called attention to the external factors that help bring about success. He was also not surprised that it drew such a sharp reaction from those who want to believe that they were the sole architects of their achievements. But he argues that we must accept that life outcomes are determined by disparities in nature and nurture, “so we can take practical measures to remedy misfortune and help everyone to fulfill their potential.”

Understanding how will be the work of decades, as we slowly unravel the nature of our own minds. In many areas, that work will likely yield more compassion: offering more (and more precise) help to those who find themselves in a bad place. And when the threat of punishment is necessary as a deterrent, it will in many cases be balanced with efforts to strengthen, rather than undermine, the capacities for autonomy that are essential for anyone to lead a decent life. The kind of will that leads to success—seeing positive options for oneself, making good decisions and sticking to them—can be cultivated, and those at the bottom of society are most in need of that cultivation.

To some people, this may sound like a gratuitous attempt to have one’s cake and eat it too. And in a way it is. It is an attempt to retain the best parts of the free-will belief system while ditching the worst. President Obama—who has both defended “a faith in free will” and argued that we are not the sole architects of our fortune—has had to learn what a fine line this is to tread. Yet it might be what we need to rescue the American dream—and indeed, many of our ideas about civilization, the world over—in the scientific age.

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Free Will Exists and Is Measurable

Do We Really Need to Believe in Free Will?

Believing in free will may actually hinder therapy's progress..

Updated July 28, 2024 | Reviewed by Margaret Foley

• Believers in free will tend to feel an inordinate amount of shame for their failures.
• Your genes and environment contribute to your choices and efforts.
• Accepting some level of determinism may help us learn to integrate our flaws.

There's a misconception that we need to believe in free will in order to be able to grow. Proponents of free will argue that therapy, for example, can be successful only if patients believe in their ability to choose to take complete responsibility for their lives. Unfortunately, with that perspective, one that professes a belief in libertarian free will, taking responsibility invariably engenders a deep sense of shame , particularly when taking responsibility for change isn't enough to make practical changes.

Free Will vs. Determinism

I argue instead for agency , which isn't the same as free will, as agency is cultivated in an environment that takes genes , life circumstances, and a history of trauma into account. Agency allows the individual to work with the tools she's given, as opposed to believing that she can will herself to be whomever she wishes. Since we tend to be black-and-white thinkers, we frequently get trapped in the dichotomy of free will vs. determinism . Patients have told me: "If I don't believe in free will, shouldn't I just give up?" Determinism, to them, means that everything is set in stone and, logically, we must therefore lack the ability to change course; free will, on the contrary, means the ability to change course whenever one wants to. Yet, they fail to note that their perspective is, in part, related to how difficult it is (both emotionally and with respect to the limits of our imaginations) for us to conceive of free will as anything but free; to most of us, it feels like we are in charge of our brains. And it's often terrifying to consider otherwise.

People with ADHD , for example, are often astounded by their inability to concentrate for long periods of time (with few exceptions) and complete simple tasks. So, they seek out psychotherapy to aid them. They most often believe the problem lies with their motivation , hoping that treatment will persuade them to take their lives more seriously, as though their current distress isn't already indicative of their deep desire to change. Yet, with respect to ADHD, psychotherapeutic treatment often comprises teaching behavioral strategies for focusing (and remembering) and, most importantly, addressing the shame around their diagnosis.

Some Benefits of Determinism

We can easily note how failing to believe in free will may hinder treatment, but, contrary to our intuitions, accepting some form of genetic and environmental determinism may actually aid it. Bill Sullivan writes , "It is now understood that virtually anything in our environment can alter gene activity: diet , exercise, drug use, pollution, and more. Perhaps more surprisingly, experiences can also alter gene activity through epigenetics . Children who suffer trauma have epigenetic changes in genes regulating stress responses, which may explain why many grow up to have health and behavioral problems." This means that much of what we call our personality is heavily influenced by factors we have no control over, both internal and external.

For me, understanding cause and effect and what I was and wasn't capable of helped me reframe my conception of myself as a coward when I was unable to stand up to my stepfather as a teenager . I came to understand how my risk assessment, limited physical strength, and lack of support contributed to what finally felt like an inevitable decision, even though it really was just "more likely than not." When we consider free will as free, we compare ourselves to all others, as though we're equals in every imaginable way. While politically and socially this ought to be accurate—meaning we all deserve equal treatment under the law—it isn't accurate psychologically or, almost as often, even physically.

It's easy to feel insulted by the suggestion that one has a neurodivergent brain, to feel abnormal in all of the worst ways. The benefits of these diagnoses, truthfully, fail to counterbalance their symptoms, but the internal pressure to overcome them not only helps to sustain them in their unmanaged forms but also adds a layer of grief after each failed attempt. Consider how trauma may influence the mind's ability to deal with stress and how difficult a task that may be to alter. On an episode of the Seize the Moment Podcast , Sullivan told my cohost Alen and me that we should think of our environments as dimmer switches, which regulate the expression of our genes. Noting studies on adverse childhood experiences (ACEs), he recounted the various factors that contribute to mental health struggles later in life, stating, "If you look at the brains of, unfortunately, children exposed to ACEs...if you look at those brains postmortem, you can find epigenetic changes that took place at stress response genes. So, what that is telling us is that children exposed to ACEs are being epigenetically reprogrammed to expect stress and trauma all the time, and they don't seem to be able to grow out of that."

Agency: Sharing Success or Failure

Whereas blame says, "You deserved your punishment ," responsibility asks, "What can I do to improve?" or "How can I contribute?" Distinguishing between the two in the context of Sullivan's comment about traumatic stress aids us in disconnecting the notion of agency from that of free will. Whereas free will implies, "You can go as far as you're willing to," agency implies that you can use resources at your disposal to get better at coping. Unlike free will, the notion of agency takes into account the influences around you, from therapy to your teachers to peers and family. Agency implies a world wherein actors don't act on their own but because of themselves and others, with the influences, including one's personality (or propensities), affecting the likelihood of each outcome.

Our perfectionist patients tend to struggle with accepting their limits, again the significant downside of accepting the responsibility attached to a libertarian form of free will, and, paradoxically, they cower from shame (fluctuating between avoidance and obsession). To them, each failure is solely attributed to them, as is each success. Agency, however, is a compatibilist response to the debate, but one that eliminates the possibility of extreme pride, which those perfectionists tend to be hyper-focused on feeling. So, you choose to take the good with the bad; if you subscribe to this view, your wins are shared just as much as your losses.

As therapists, we learn to share in our patients' failures as well, taking some of the burden of responsibility off of them. If Sullivan is right, the sharing should help. It signifies the impact of trauma or, more generally, of any diagnosis. And it helps our patients learn to live as part of, rather than above, the world, in tune with its rhythm. The free-will believer, in some sense, believes herself to be superhuman. Yet, humility teaches her that she's less in control of the world and even her own mind than she wishes to think. But her believing that requires one final element to this wonderful stew: her open mind.

To find a therapist, visit the Psychology Today Therapy Directory .

Leon Garber is a licensed mental health counselor practicing in Brooklyn, NY. He specializes in treating obsessive compulsive disorder, perfectionism, and existential issues, including the more philosophical question of how to cultivate a meaningful life.

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College of Agriculture & Natural Resources Department of Plant, Soil and Microbial Sciences

Congratulations jin ho lee, who recently defended his phd thesis (successfully) and completed his program..

July 29, 2024

Still plenty of work to do in the Kravchenko lab, Jin says.

Jin Ho Lee plans to stick around for a while, to continue working with the Kravchenko Lab .

"The best part of my experience at MSU has been the opportunity to collaborate with distinguished scientists and expand my insights in soil science under their guidance," Jin says. "Utilizing cutting-edge techniques available not only at MSU but also across the US, such as the research facilities at Argonne National Laboratory, has significantly enriched my research capabilities and academic growth."

Jin will continue to work with PI Kravchenko on a new research project. "This will allow me to end up current publications and to further develop my expertise in soil science."

In the longer term, Jin's plans include returning to his home country, South Korea, and securing a permanent researcher position, perhaps working with Rice. "I aim to continue my career in soil science academia, contributing to climate change mitigation in agricultural sector."

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CALF: In The Year Of Small-Caps, Cash Flow Is King

• 2024 may see the Fed cutting interest rates for the first time, benefiting small capitalization equities via lower cost of funds and higher earnings per share.
• Pacer US Small Cap Cash Cows 100 ETF tracks top 100 small-cap companies based on free cash flow yield, offering a robust choice for small capitalization equities.
• The ETF's holdings have compelling valuations with a 11x P/E ratio and potential for significant upside in earnings growth and P/E ratio re-rating in a soft landing scenario.
• The fund has outperformed the much better known iShares Russell 2000 ETF in the past five years via its methodology build.
• A risk factor for the name to keep in mind is the fund's overweight positioning in Consumer Cyclicals as a sector.

2024 is shaping up to be the first year the Fed will cut interest rates, after a violent cycle of rate hikes. On the equity side, large capitalization stocks have benefited from strong balance sheets and funding profiles, and have thus outperformed small caps in the past two years. As the interest rate cycle is about to turn, valuation profiles will start to matter again, and small capitalization equities stand to benefit from lower cost of funds and thus higher earnings per share.

In this article, we are going to have a closer look at the Pacer US Small Cap Cash Cows 100 ETF ( BATS: CALF ), a small capitalization equities exchange-traded fund:

The Pacer US Small Cap Cash Cows 100 ETF(the “Fund”) is an exchange traded fund that seeks to track the total return performance, before fees and expenses, of the Pacer US Small Cap Cash Cows Index (the “Index”).

The ETF employs a rules-based methodology to screen for the best names in the focus list, and represents a robust choice when screening for small capitalization equities ETFs.

What does the Index do?

As per its literature, the Pacer US Small Cap Cash Cows Index is:

A strategy driven index that aims to provide capital appreciation over time by screening the S&P SmallCap 600® for the top 100 small-cap companies based on free cash flow yield.

The Index therefore chooses the best 100 names from the S&P 600 Small Caps, as identified based on free cash flow metrics:

Stock Selection (Fund Fact Sheet)

The above visual aid from the ETF's fact sheet shows how the progression works for the name - the top 100 companies based on FCF are selected, and please notice the valuation differentials. The selected names have a free cash flow yield of 11.38% versus 4.17% for the entire universe. The metric is computed using the highest trailing 12 month free cash flow.

While net income can be affected by many non-cash accounting standards, free cash flow is the ultimate profitability metric:

Key Takeaways. Free cash flow (FCF) is the money a company has left over after paying its operating expenses (OpEx) and capital expenditures (CAPEX). The more free cash flow a company has, the more it can allocate to dividends, paying down debt, and growth opportunities.

Buying into a portfolio of small capitalization stocks with high FCF represents a methodology of buying into profitable names by using a clear cut standard.

High concentration of cyclicals

The index methodology gives us an ETF which is highly concentrated in consumer cyclicals:

Holdings Sectors (Seeking Alpha)

Consumer cyclicals make up 27% of the holdings here, followed by industrials at 17% and energy at 12%. The security selection and build are done from a market cap weighted perspective, and the top 10 names account for roughly 20% of the fund:

Top Holdings (Fund Fact Sheet)

We can see a diverse build in the top 10 names, but a recurring theme in displaying a very large free cash flow yield.

Valuations are very compelling

As the S&P 500 hit another high and printed a P/E ratio above 20x, CALF comes with an 11x P/E ratio. Its over valuation metrics are equally compelling:

Valuation Metrics (Morningstar)

The fund's Price to Book ratio is 1.45, and its Price to Sales is 0.54. There is tremendous value in small capitalization equities currently, given the lack of capital flow during a rising rates environment. CALF has the ingredients for outperformance if we do get the soft landing the market is pricing in.

Just think about it this way, in terms of upside here - there is scope for both earnings growth for small caps, as well as a re-rating higher to 14x in terms of utilized P/E factor. Both earnings and a re-rating can provide significant upside for the name going forward.

The ETF has done outstandingly well during prior rate cut cycles:

While exposing a drawdown profile similar to the iShares Russell 2000 ETF ( IWM ) during the Covid crisis, the fund outperformed as rates moved close to zero. Please note that IWM peaked at 40% price appreciation, while CALF went up to 80%. Its rules-based methodology works very well, and the fund is a clear outperformer in a low rates environment.

Risk Factors

Despite its many appealing factors, CALF does not come without any risks. The fund has a large 3-year standard deviation of 22.9%, and an annualized volatility of 19%. The fund's risk analytics are reflective of the space it generates returns in - small capitalization equities tend to have liquidity issues in major downturns.

The second risk factor to keep in mind is the fund's overweight positioning in Consumer Cyclicals as a sector. While a soft landing scenario allows the fund to monetize and ride the intrinsic profitability of its chosen equities, a recessionary environment will hit this name hard because cyclicals are prone to severe downturns in recessions. The name will have significant downside if a hard landing does materialize, and we saw the ETF lose -15% in 2022 during the overall risk-off wave.

CALF is equities exchange-traded fund. The vehicle represents an expression of small capitalization stocks in the value sector, with a focus on free cash flow generating enterprises. The fund follows an index which actively screens for the top 100 names in the S&P 600 Small Cap sector, names which have the best FCF metrics.

Through its methodology, CALF is overweight consumer cyclical stocks, which could significantly impair performance during a recession. The fund comes with extraordinary valuation metrics in an 11x P/E ratio and 1.4 P/B figure. In a base case where we have a soft landing with several rate cuts, CALF is set to outperform both via earnings growth and P/E ratio re-rating. In today's macro environment which is pricing a September 2024 Fed rate cut and a soft landing, CALF represents a tremendously robust opportunity in the small-cap space, a better proposal than IWM in our view.

This article was written by

Analyst’s Disclosure: I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving compensation for it (other than from Seeking Alpha). I have no business relationship with any company whose stock is mentioned in this article.

Seeking Alpha's Disclosure: Past performance is no guarantee of future results. No recommendation or advice is being given as to whether any investment is suitable for a particular investor. Any views or opinions expressed above may not reflect those of Seeking Alpha as a whole. Seeking Alpha is not a licensed securities dealer, broker or US investment adviser or investment bank. Our analysts are third party authors that include both professional investors and individual investors who may not be licensed or certified by any institute or regulatory body.

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