Showing posts sorted by date for query dualism. Sort by relevance Show all posts
Showing posts sorted by date for query dualism. Sort by relevance Show all posts

Tuesday, July 17, 2012

The road from atheism

As most of my readers probably know, I was an atheist for about a decade -- roughly the 1990s, give or take.  Occasionally I am asked how I came to reject atheism.  I briefly addressed this in The Last Superstition.  A longer answer, which I offer here, requires an account of the atheism I came to reject.

I was brought up Catholic, but lost whatever I had of the Faith by the time I was about 13 or 14.  Hearing, from a non-Catholic relative, some of the stock anti-Catholic arguments for the first time -- “That isn’t in the Bible!”, “This came from paganism!”, “Here’s what they did to people in the Middle Ages!”, etc. -- I was mesmerized, and convinced, seemingly for good.  Sola scriptura-based arguments are extremely impressive, until you come to realize that their basic premise -- sola scriptura itself -- has absolutely nothing to be said for it.  Unfortunately it takes some people, like my younger self, a long time to see that.  Such arguments can survive even the complete loss of religious belief, the anti-Catholic ghost that carries on beyond the death of the Protestant body, haunting the atheist who finds himself sounding like Martin Luther when debating his papist friends. 

Monday, April 30, 2012

Reading Rosenberg, Part X

And now we reach, at long last, the end of our detailed critical look at Alex Rosenberg’s The Atheist’s Guide to Reality.  In this final post I want to examine what Rosenberg has to say about a set of philosophical arguments he regards as “among the last serious challenges to scientism” (p. 228).  The arguments in question all entail that the realm of conscious experience -- what common sense says we know only “from inside” (p. 238), from a point of view “somewhere behind the eyes” (p. 222) -- cannot be accounted for in terms of neuroscience or physical science more generally.  In his treatment of these arguments, we get Rosenberg simultaneously at his best and at his worst.

Tuesday, April 10, 2012

Reading Rosenberg, Part IX

Our long critical look at Alex Rosenberg’s The Atheist’s Guide to Reality now brings us at last to that most radical of Rosenberg’s claims -- the thesis that neither our thoughts nor anything else has any meaning whatsoever.  To the reader unfamiliar with recent philosophy of mind I should emphasize that the claim is not merely that our thoughts, actions, and lives have no ultimate point or purpose, which is hardly a novel idea.  It is far more bizarre than that.  Consider the following two sequences of shapes: “cat” and “^\*:”  We would ordinarily say that the first has meaning -- it refers to animals of the feline sort -- while the latter is a meaningless set of marks.  And we would ordinarily say that while the meaning of a word like “cat” is conventional, the meaning of our thoughts about cats -- from which the meaning of the word in question derives -- is intrinsic or “built in” to the thought rather than conventional or derived.  What Rosenberg is saying is that in reality, both our thoughts about cats and the sequence of shapes “cat” are as utterly meaningless as the sequence of shapes “^\*:”  Neither “cat” nor any of our thoughts is any more about cats or about anything else than the sequence “^\*:” is about anything.  Meaning, “aboutness,” or intentionality (to use the technical philosophical term) is an illusion.  In fact, Rosenberg claims, “the brain does everything without thinking about anything at all.”

Thursday, March 8, 2012

Reading Rosenberg, Part VIII

And now, dear reader, our critical look at Alex Rosenberg’s The Atheist’s Guide to Reality brings us to the pseudoscience du jour.  Wittgenstein famously said that “in psychology there are experimental methods and conceptual confusion” (Philosophical Investigations, II, xiv, p. 232).  He might as well have been talking about contemporary neuroscience -- or, more precisely, about how neuroscience becomes distorted in the hands of those rich in empirical data but poor in philosophical understanding.  Every week seems to bring some new sensationalistic claim to the effect that neuroscience has “shown” this or that -- that free will is an illusion, or that mindreading is possible, or that consciousness plays no role in human action -- supported by arguments notable only for the crudeness of the fallacies they commit.  

Tyler Burge has given the label “neurobabble” to this modern intellectual pathology, and Raymond Tallis calls it “neurotrash,” born of “neuromania.”  I’ve had reason to comment on it in earlier posts (here and here) and an extreme manifestation of the disease is criticized in the last chapter of The Last Superstition.  M. R. Bennett and P. M. S. Hacker subject neurobabble to detailed and devastating criticism in their book Philosophical Foundations of Neuroscience, and Tallis does a bit of housecleaning of his own in Aping Mankind.  Neurobabble is a key ingredient in Rosenberg’s scientism.  Like so many other contemporary secularists, he has got the brain absolutely on the brain, and maintains that modern neuroscience vindicates some of his more outrageous metaphysical claims.  In particular, he thinks that so-called “blindsight” phenomena establish that consciousness is irrelevant to our actions, and that neuroscientist Benjamin Libet’s experiments cast doubt on free will.  (Jerry Coyne, in a recent article, has made similar claims about free will.  What I’ll say about Rosenberg applies to Coyne as well.)

Monday, February 20, 2012

How to animate a corpse

One of the downsides of being a philosopher is that it makes it harder to suspend disbelief when watching horror flicks.  Plot holes become more glaring and speculations seem wilder when one’s business is looking for fallacies.  On the other hand, there is nothing so absurd but some philosopher has said it; hence there’s no one better placed to find a way to make even the most preposterous yarn seem at least remotely plausible.  A case in point, submitted for your approval: My take on a segment from Rod Serling’s Night Gallery, adapted from H. P. Lovecraft’s short story “Cool Air.”  (You can find it on Hulu and YouTube.)  Watching it for the first time recently, I was annoyed by what at first seemed to me an obviously nonsensical twist ending.  On further reflection, there is a way to make sense of it, if one makes the appropriate metaphysical assumptions.

Wednesday, December 28, 2011

Reading Rosenberg, Part V

In the previous installment of our look at Alex Rosenberg’s The Atheist’s Guide to Reality, we began to examine what Rosenberg has to say about biological phenomena.  This time I want to take a brief detour and consider some of what Rosenberg says about the subject in his book Darwinian Reductionism.  I noted that while Atheist’s Guide pushes a generally uncompromising eliminative materialist line, Rosenberg resists the “eliminativist” label where issues in the philosophy of biology are concerned, and presents his views in that field as reductionist.  Darwinian Reductionism (a more serious book than Atheist’s Guide, and of independent interest) explains why.

Monday, September 12, 2011

Monkey in your soul?

Before we get to part II of my series on modern biology and original sin, I want briefly to reply to some of the responses made to part I.  Recall that my remarks overlapped with points recently made by Mike Flynn and by Kenneth Kemp in his American Catholic Philosophical Quarterly article “Science, Theology, and Monogenesis” (which, I have since discovered, is available online).  If you haven’t yet read Flynn and Kemp, you should do so before reading anything else on this subject.  As they argue, there is no conflict between the genetic evidence that modern humans descended from a population of at least several thousand individuals, and the theological claim that modern humans share a common pair of ancestors.  For suppose we regard the pair in question as two members of this larger group who, though genetically related to the others, are distinct from them in having immaterial souls, which (from the point of view of Aristotelian-Thomistic philosophy and Catholic theology) are a necessary condition for the possession of genuine intellectual powers and can be only be imparted directly by God.  Only this pair and their descendents, to whom God also imparts souls and thus intellects, would count as human in the metaphysical and theologically relevant sense, even if the other members of the original larger group are human in the purely biological sense.  As Kemp writes:

Tuesday, September 6, 2011

Modern biology and original sin, Part I

Our friend John Farrell has caused a bit of a stir in the blogosphere with his recent Forbes piece on modern biology and the doctrine of original sin.  Citing some remarks by Jerry Coyne, John tells us that he agrees with Coyne’s view that the doctrine is “easily falsified by modern genetics,” according to which “modern humans descended from a group of no fewer than 10,000 individuals” rather than just two individuals.  Those who have responded to John’s piece include Michael Liccione, Bill Vallicella (here and here), James Chastek, and Mike Flynn

Several things puzzle me about John’s article.  The first, of course, is why he would take seriously anything Jerry Coyne has to say about theology.  (We’ve seen ample evidence that Coyne is an ignoramus on the subject -- some of the relevant links are gathered here.)  The second is why John seems to think that the falsification of the doctrine of original sin is something the Catholic Church could “adapt” to.  (John’s article focuses on Catholicism.)  After all, the doctrine is hardly incidental.  It is de fide -- presented as infallible teaching -- and it is absolutely integral to the structure of Catholic theology.  If it were wrong, then Catholic theology would be incoherent and the Church’s teaching authority would be undermined.  Hence, to give it up would implicitly be to give up Catholicism, not merely “adapt” it to modern science.

Thursday, August 25, 2011

Vallicella on hylemorphic dualism, Part III

Bill Vallicella and I have been debating Aquinas’s hylemorphic dualism (HD).  Earlier posts (here, here, here, and here) have focused on Aquinas’s motivations for combining hylemorphism and dualism.  As we continue Bill and Ed’s Excellent Adventure, the discussion turns to questions about the internal coherence of the view.  In a new post, Bill summarizes what he takes to be one of the main problems with HD.  Give it a read, then come back.

Wednesday, August 17, 2011

Vallicella on hylemorphic dualism, Part II

Bill Vallicella has kindly replied to my response to his recent post on hylemorphic dualism.  The reader will recall that Bill had suggested in his original post that, given the apparent tension between hylemorphism and dualism, Aquinas’s hylemorphic dualism seems ad hoc and motivated by Christian theological concerns rather than by philosophical considerations.  I argued that this charge cannot be sustained.  Whether or not one ultimately accepts hylemorphic dualism, if one agrees that there are serious arguments both for hylemorphism and for dualism, then -- especially when we add independent metaphysical considerations such as the Scholastic principle that the way a thing acts reflects the manner in which it exists -- one should at least acknowledge that hylemorphic dualism has a philosophical rationale independent of any Christian theological concerns.  It seems Bill still disagrees, but I do not see how his latest post gives any support to his original charge.

Thursday, August 4, 2011

Vallicella on hylemorphic dualism

Hylemorphic dualism is the approach to the mind-body problem taken by Aquinas and the Thomist tradition more generally.  (The label may have been coined by David Oderberg, who defends the view in an important paper and in his book Real Essentialism.  “Hylemorphic” is sometimes spelled “hylomorphic,” though the former spelling is arguably preferable since it is closer to the Greek root hyle.)  The view holds both that the soul is the substantial form of the living human body (that is the “hylemorphic” part) and that it is unique among the forms of material things in being subsistent, that is, capable of surviving beyond the death of the body (that is the “dualism” part).  Our friend Bill Vallicella has recently put forward the following criticism of the view:

Saturday, July 16, 2011

So you think you understand the cosmological argument?

Most people who comment on the cosmological argument demonstrably do not know what they are talking about.  This includes all the prominent New Atheist writers.  It very definitely includes most of the people who hang out in Jerry Coyne’s comboxes.  It also includes most scientists.  And it even includes many theologians and philosophers, or at least those who have not devoted much study to the issue.  This may sound arrogant, but it is not.  You might think I am saying “I, Edward Feser, have special knowledge about this subject that has somehow eluded everyone else.”  But that is NOT what I am saying.  The point has nothing to do with me.  What I am saying is pretty much common knowledge among professional philosophers of religion (including atheist philosophers of religion), who – naturally, given the subject matter of their particular philosophical sub-discipline – are the people who know more about the cosmological argument than anyone else does. 

In particular, I think that the vast majority of philosophers who have studied the argument in any depth – and again, that includes atheists as well as theists, though it does not include most philosophers outside the sub-discipline of philosophy of religion – would agree with the points I am about to make, or with most of them anyway.  Of course, I do not mean that they would all agree with me that the argument is at the end of the day a convincing argument.  I just mean that they would agree that most non-specialists who comment on it do not understand it, and that the reasons why people reject it are usually superficial and based on caricatures of the argument.  Nor do I say that every single self-described philosopher of religion would agree with the points I am about to make.  Like every other academic field, philosophy of religion has its share of hacks and mediocrities.  But I am saying that the vast majority of philosophers of religion would agree, and again, that this includes the atheists among them as well as the theists.

Friday, May 27, 2011

Two, four, six, eight! Who do you reincarnate?

Could there be such a thing as reincarnation?  A necessary condition would be the truth of some form of dualism.  So far so good, since (I would say) some form of dualism is true.  But which form?  There are at least three to choose from: substance dualism, the version associated with Plato and Descartes; property dualism, associated with the likes of John Locke, David Chalmers, and (the early) Frank Jackson; and the hylemorphic dualism defended within the Aristotelian-Thomistic metaphysical tradition.  Are all of these equally favorable to a defense of reincarnation?

Tuesday, May 17, 2011

Mind-body problem roundup

For readers who might be interested, I thought it would be useful to gather together in one place links to various posts on the mind-body problem and other issues in the philosophy of mind.  Like much of what you’ll find on this blog, these posts develop and apply ideas and arguments stated more fully in my various books and articles.  Naturally, I address various issues in the philosophy of mind at length in my book Philosophy of Mind, of which you can find a detailed table of contents here.  (The cover illustration by Andrzej Klimowski you see to the left is from the first edition.)  You will find my most recent and detailed exposition of the Aristotelian-Thomistic (A-T) approach to issues in the philosophy of mind in chapter 4 of Aquinas.  There is a lot of material on the mind-body problem to be found in The Last Superstition, especially in various sections of the last three chapters.  And there is also relevant material to be found in Locke, in the chapter I contributed to my edited volume The Cambridge Companion to Hayek, and in various academic articles.

Friday, April 8, 2011

Descartes’ “trademark” argument

Descartes presents three arguments for God’s existence in the Meditations: a version of the ontological argument; the “preservation” argument, which is an eccentric variation on the idea of God as First Cause; and the “trademark” argument.  Each of these is problematic, though each is also more interesting and defensible than it is usually given credit for.  I have said something about ontological arguments in a couple of recent posts (here and here), and I might have something to say about the “preservation” argument in a future post.  For now let’s consider the “trademark” argument – probably the most maligned of the three.

Friday, March 4, 2011

Scientism roundup

In several recent posts we have dealt at least indirectly with scientism, the view that the only real knowledge is scientific knowledge.  Scientism is an illusion, a bizarre fantasy that makes of science something it can never be.  Seemingly the paradigm of rationality, it is in fact incoherent, incapable in principle of being defended in a way consistent with its own epistemological scruples.  It should go without saying that this in no way entails any criticism of science itself.  For a man to acknowledge that there are many beautiful women in the world does not entail that he doesn’t think his own wife or girlfriend is beautiful.  Similarly, to say that there are entirely rational and objective sources of knowledge other than science does not commit one to denying that science is a source of knowledge.  Those who cannot see this are doubly deluded – like a vain and paranoid wife or girlfriend who thinks all women are far less attractive than she is and regards any suggestion to the contrary as a denial of her own beauty.  Worse, like an already beautiful woman whose vanity leads her to destroy her beauty in the attempt to enhance it through plastic surgery, scientism threatens to distort and corrupt science precisely by exaggerating its significance.

Saturday, February 26, 2011

Live Action, lying, and natural law

Several people have asked me to comment on the Live Action controversy.  If you’re not familiar with it, Live Action is a pro-life organization founded by activist Lila Rose (pictured at left), which has carried out a number of amateur “sting” operations intended to expose employees of Planned Parenthood as complicit in providing abortions to minors without parental consent and willing to overlook statutory rape and sex trafficking.  Many conservative Catholics have applauded Live Action, but many others have been critical of their deceptive tactics.  I haven’t followed the story closely, and I am rather sick of the topic of lying given the four long posts I devoted to the subject not too long ago (here, here, here, and here).  But my position should be clear from those posts.

Thursday, January 20, 2011

Against “neurobabble”

Every written token of the English word “soup” is made up of marks which look at least vaguely like “s,” “o,” “u,” and “p.”  Of course, it doesn’t follow that the word “soup” is identical to any collection of such marks, or that its properties supervene on the material properties of such marks, or that it can be explained entirely in terms of the material properties of such marks.  Everyone who considers the matter knows this.

To borrow an example from psychologist Jerome Kagan, “as a viewer slowly approaches Claude Monet's painting of the Seine at dawn there comes a moment when the scene dissolves into tiny patches of color.”  But it doesn’t follow that its status and qualities as a painting reduce to, supervene upon, or can be explained entirely in terms of the material properties of the color patches.  Everyone who considers the matter knows this too.

Somehow, though, when neuroscientists discover some neural correlate of this or that mental event or process, a certain kind of materialist concludes that the mind’s identity with, or supervenience upon, or reducibility to, or complete explanation in terms of neural processes is all but a done deal, and that the reservations of non-materialists are just so much intellectually dishonest bad faith.  In a recent online op-ed piece for The New York Times, and in an apt phrase, philosopher of mind Tyler Burge criticizes this tendency as “neurobabble,” which produces only “the illusion of understanding.”  For it is as fallacious as any parallel argument about words or paintings would be.

Saturday, August 7, 2010

Conceiving and hallucinating

The “conceivability argument” for dualism holds that (1) it is conceivable that I might exist apart from by body, and therefore that (2) it is metaphysically possible for me to exist apart from my body, so that (3) I am not identical to my body. I put forward a detailed and sympathetic exposition of this argument in chapter 2 of Philosophy of Mind – for it is more interesting and defensible than some philosophers give it credit for – but I do not in fact endorse it. It is essentially a variation on Descartes’ “clear and distinct perception” argument for dualism, and as I’ve argued elsewhere, what’s true in that argument isn’t new and what’s new isn’t true. (As an Aristotelico-Thomist I reject the rationalist assumptions inherent in Descartes’ version, and the Kripke-style modal assumptions inherent in modern versions. But demonstrating the mind’s immateriality does not require committing oneself to these assumptions.)

But as I say, the argument is more defensible than it is often given credit for. Take the thought experiment I discussed in Philosophy of Mind, W. D. Hart’s “seeing without a body” example. (Hart develops this example in his book The Engines of the Soul and in his article “Dualism” in Samuel Guttenplan, ed., A Companion to the Philosophy of Mind. Follow the links and you can read the relevant sections online via Google books.) Hart asks you to imagine that you wake up one morning, look in the bathroom mirror, and see staring back at you two empty eye sockets where your eyeballs used to be. This is no doubt physically impossible, but it does seem that we can at least conceive of having such an experience. There is no apparent contradiction or incoherence in the idea. Seeing without eyeballs is thus arguably metaphysically possible even if it is not physically possible.

Hart then asks us to extend the thought experiment in various ways. For example (and as I suggested extending it in the book) you might imagine that instead of seeing two empty eye sockets staring back at you, what you see in the mirror is the stump of your neck where your head used to be – a headless body, arms raised in horror. Seeing without a head, and thus without a brain, seems perfectly conceivable, then, and therefore (by the reasoning of the conceivability argument) at least metaphysically possible even if not physically possible. And if that is conceivable, so too is it conceivable to have the experience of seeing without arms, legs, torso, or any body at all; in which case (the argument claims) it is metaphysically possible to see without a body. But since seeing is a kind of mental state, it is therefore metaphysically possible to have a mind without a body.

Now, to evaluate the conceivability argument, we have to determine (a) whether what seems to be conceivable in this case really is conceivable, (b) whether conceivability really does entail metaphysical possibility, and (c) whether the metaphysical possibility of A existing without B really does entail that A and B are non-identical. I commend Hart’s discussion of these various issues (and also my discussion in Philosophy of Mind) to the interested reader. What I want to focus on here is just (a), and in particular on one possible challenge to (a).

A friend of mine sometimes reads this blog at work. (“I’m that bored,” he explains.) He’s been reading Philosophy of Mind, and when I saw him the other day he asked vis-à-vis the Hart example: “What does that prove? Isn’t it just obvious that I would be hallucinating?” That’s a fair question. We might put the objection this way: For the conceivability argument to work, we have to be able to show that (among other things) it really is conceivable to see without a body. But Hart’s example shows at most only that it is conceivable that we might have an experience that seems like the experience of seeing without a body. And that’s not good enough, because such an experience might be hallucinatory. “Seems like” does not entail “really is.” Therefore, “We can conceive of it seeming like such-and-such is the case” does not entail “We can conceive of such-and-such really being the case.”

But I think the objection fails. The reason is that hallucination seems parasitic on veridical experience in a way that ensures that if we can conceive of hallucinating something, it follows that we can conceive of really experiencing it. Consider that it isn’t just impossible to conceive of seeing a round square. It is also impossible to conceive of hallucinating a round square. And this is so, surely, precisely because it is impossible to conceive of seeing one. Hallucinating (or visually hallucinating, anyway) is just a kind of defective seeing. So, what’s impossible for seeing in general is impossible for hallucinations in particular. But then, if it were impossible for us to see without a body, it would also be impossible for us to hallucinate seeing without a body. So, since the Hart example at least shows (by the objector’s own admission) that the latter is possible, that suffices to show that the former is possible as well.

Or so it seems to me. The conceivability argument may or may not fail on other grounds, but I think that at least to this extent it is on solid ground.

Monday, August 2, 2010

Fodor’s trinity

What is the mind-body problem? In an article summarizing his work, which he wrote for Samuel Guttenplan’s A Companion to the Philosophy of Mind, Jerry Fodor answers as follows:

[S]ome of the most pervasive properties of minds seem so mysterious as to raise the Kantian-sounding question how a materialistic psychology is even possible. Lots of mental states are conscious, lots of mental states are intentional, and lots of mental processes are rational, and the question does rather suggest itself how anything that is material could be any of these.

For Fodor, then, there are really three mind-body problems: the problem of consciousness, the problem of intentionality, and the problem of rationality. Why are the phenomena in question problematic?

Let’s look at each briefly. (The following characterizations are mine, not Fodor’s.) When light strikes your retinas, a complex series of neural processes is initiated which may result in one of a range of possible behaviors – taking steps to avoid an obstacle, sorting red apples from green ones, or saying “It’s sunny outside.” When light strikes an “electric eye” or photodetector of some sort, electrical processes are initiated which also may result in one among a range of possible behaviors – the setting off on an alarm, for example, or, if the device is associated with a robot, perhaps behavior similar to the sort you might exhibit, such as avoiding an obstacle, sorting objects, or declaring (through a speech synthesizer) that it is sunny. Now, in the case of the electric eye and its associated robot, what we can observe going on in the system is presumably all there is. The system has no “inner life” or conscious visual experience associated with the electrical activity and behavior. But we do have conscious awareness; we do have an “inner life.” There is “something it is like” for us to see things, whereas there is nothing it is like for the robot to “see” something. Or as contemporary philosophers like to say, we have qualia while the robot appears not to. So, what accounts for this difference? It does not seem plausible to hold that it can be accounted for merely in terms of the greater complexity of the human brain, because the difference between conscious systems and unconscious ones seems clearly to be a difference in quality and not merely of quantity. This is the problem of consciousness.

Then there is the problem of intentionality, which concerns, not just intentions, but meaning in general. (The technical term “intentionality” derives from the Latin intendere, which means “to point at” or “to aim at,” as a word or thought points to or aims at the thing that it means.) Suppose we say that within the robot of our example there is a symbolic representation that means that it is sunny outside. Though the representation has this meaning, it has it only because the designers of the robot programmed the system so that it would be able to detect weather conditions and the like. The electrical processes and physical parts of the system would have had no meaning at all otherwise. By contrast, the thoughts of the designers themselves have meaning without anyone having to impart it to them. As John Searle has put it, the robot’s symbolic representations – like words, sentences, and symbols in general – have only derived intentionality, while human thought has original or intrinsic intentionality. What can account for the difference, especially if we assume that human beings are no less material than robots? That, in a nutshell, is the problem of intentionality.

Consider also that we are able not only to have individual meaningful thought episodes, but also to infer to further thoughts, to go from one thought to another in a rational way. This is not merely a matter of one thought causing another; a lunatic might be caused to conclude that mobsters are trying to kill him every time he judges that it is sunny outside, but such a thought process would not be rational. Rather, we are able to go from one thought to another in accordance with the laws of logic. Now, it might seem that the robot of our example, and computers generally, can do the same thing insofar as we can program them to carry out mathematical operations and the like. But of course, we have had to program them to do this. We have had to assign a certain interpretation to the otherwise meaningless symbolic representations we have decided to count as the “premises” and “conclusion” of a given inference the machine is to carry out, and we have had to design its internal processes in such a way that there is an isomorphism between them and the patterns of reasoning studied by logicians. But no one has to assign meaning to our mental processes in order for them to count as logical. So, what accounts for the difference? How are we able to go from one thought to another in accordance, not just with physical causal laws, but in accordance with the laws of logic? That is the problem of rationality.

Most contemporary philosophers of mind would, I think, agree with Fodor that this trinity of issues constitutes the mind-body problem, and I think they would also more or less agree with my statement of the problems. They do not necessarily agree about how difficult the problems are. Of the three, the problem of rationality seems to get the least attention from contemporary philosophers. Fodor himself thinks that this problem is the one contemporary philosophers have most plausibly been able to solve in a way that vindicates materialism, and that they have done so (contrary to what my statement of the problem suggests) precisely by thinking of rational thought processes as computational processes over formal symbols encoded in the brain. Most other contemporary philosophers of mind seem to agree with Fodor about this much, though there are prominent dissenters, such as Searle, Dreyfus, and defenders of the anti-materialist “argument from reason.” The greatest of the ancient and medieval philosophers would have sided with the dissenters; for Plato, Aristotle, Aquinas, et al., rationality was the aspect of human nature that could not possibly involve a material organ. (We will come back to this point.)

Contemporary philosophers, by contrast, are obsessed with the problem of consciousness, and in particular with “qualia” – something you do not see the ancients and medievals worrying about at all, certainly not as something that pointed to any immaterial aspect of human nature. Fodor, like many other contemporary philosophers of mind, regards this as “the hard problem” for materialism. The problem of intentionality also gets a lot of attention from contemporary philosophers. My sense is that in general they tend to find it more challenging than the problem of rationality but not as challenging as the problem of consciousness. My own view is that, at least as contemporary philosophers tend to understand the problem, it is in fact as great or even greater a difficulty for materialism than the problem of consciousness is. The ancients and medievals would, I think, have agreed, though they would have regarded the problem as pointing to an immaterial aspect of human nature only to the extent that it overlaps with the problem of rationality.

The reason for all this is that the problems of consciousness and intentionality, as they are understood by modern philosophers anyway, are not (as they are often assumed to be) “perennial” problems of philosophy, but rather an artifact of certain historically contingent metaphysical assumptions early modern philosophers like Descartes, Hobbes, Locke, and Co. put at the center of Western thought. In particular, they are an artifact of the “mechanistic” revolution I have discussed and criticized so frequently on this blog and in my books The Last Superstition and Aquinas.

I have explained how this is so at length, both in those books and in previous posts, but here is a brief summary. On the older, Aristotelian-Scholastic understanding of the natural world that the early modern thinkers overthrew, qualities like color, sound, odor, taste, heat and cold were taken to exist in the material world more or less in just the way common sense supposes that they do. The moderns, reviving the view of the ancient atomists, denied this: For them, the natural world is made up of intrinsically colorless, odorless, soundless, tasteless particles in motion, and the qualities in question exist only in the mind of the observer. For purposes of physics, we can in their view redefine heat and cold in terms of molecular motion, or red and green in terms of the different surface reflectance properties of physical objects, but heat, cold, red and green as common sense understands them exist only in consciousness. But since the brain is on this view made up of inherently colorless, odorless, tasteless particles no less than any other physical object, this seems inevitably to entail that consciousness is not a feature of the brain – which is, of course, exactly what Descartes, Malebranche, Locke, and other early modern thinkers concluded insofar as they embraced dualism. Therein lies the origin of what contemporary writers call the “qualia problem” or the problem of consciousness.

The older, Aristotelian-Scholastic view also held that a kind of meaning, teleology, or goal-directedness is built into the structure of the material world from top to bottom. This includes not just the usual examples – the functions of bodily organs – but basic causal relations as well. For the Scholastics, if some cause A predictably generates some specific effect or range of effects B, this can only be because A inherently “points to” or “aims at” B. Generating B, specifically – rather than C, or D, or no effect at all – is what Aristotelians would call the “final cause” of A. Causing B is what A will naturally tend to do unless impeded. Now the early moderns eliminated final causality from their picture of the natural world; this was and has remained the core of a “mechanistic” conception of nature. For them there is no teleology built into nature, no purposiveness or goal-directedness. There are brute, meaningless cause and effect patterns, but no reason inherent in nature why a cause should have just the effects it does have. One result of this was to open the way to the puzzles about causation raised by David Hume. More relevant to our interests here, though, is that it made intentionality particularly problematic. If nothing in the material world inherently “points to” or “aims at” anything else – if matter is comprised of nothing more than inherently purposeless, meaningless particles in motion – then, since the brain is made up of these particles no less than any other material object is, it seems to follow that the intentionality of our thoughts, that by virtue of which they inherently “point to,” “aim at,” or mean something beyond themselves, cannot be any sort of material property of the brain. Thus is generated the problem of intentionality.

So, Fodor’s trinity of “mind-body problems” very much reflects a modern set of assumptions about the nature of the physical world. It also reflects a presumption of materialism insofar as Fodor, like so many other contemporary philosophers, writes as if the question to ask were “How do we explain these phenomena in material terms?” Of course, a modern dualist would say that these phenomena cannot be explained in material terms, so that the right question to ask is “Given that these phenomena are not material, how are they related to material phenomena? For example, do they interact causally with them, and if so, how?” You might say that what the mind-body problem is is in part determined by how one thinks it should be solved. (“But how does positing immaterial mind-stuff explain things any better?” A common materialist retort, but not a good one, for reasons I have explained here and here.)

Notice also that Fodor says nothing about the “body” side of the mind-body problem – as if matter were unproblematic and only mind posed any philosophical difficulties. As I have noted recently, a number of prominent contemporary philosophers have emphasized that this is by no means the case. And from an Aristotelian-Scholastic point of view, the moderns’ standard assumptions about matter are perhaps even more problematic than their assumptions about mind. “Qualia” can seem necessarily immaterial only if we assume that matter is as the ancient atomists and their modern successors assume it to be; the “qualia problem,” which many modern materialists regard as such a challenge to their position (as Democritus himself did) is a problem that their own favored conception of matter created. The same is true of the problem of intentionality, at least if that is taken essentially to involve the problem of how something material can “point to” or be “directed at” something else. From an Aristotelian-Scholastic point of view, since matter is not as the atomists take it to be, and immanent final causality or teleology pervades the material world from top to bottom anyway, there is no special difficulty in regarding qualia and (at least many instances of) intentionality as in some significant sense “natural” or even “material” phenomena.

Things are very different, though, where intentional phenomena having a conceptual structure are concerned, as well as where reasoning is concerned. Here is where the Aristotelian-Scholastic tradition locates an immaterial element to human nature. The reason, in a nutshell, is that the objects of our thoughts are universal rather than particular, and determinate or exact rather than indeterminate or ambiguous; that the thoughts themselves inherit this universality and determinacy; and that nothing material can possibly be universal and determinate in this way. This is, of course, a very large topic deserving a discussion of its own. I have explored it in more detail in earlier posts (e.g. here and here) as well as in chapter 4 of Aquinas and chapter 7 of Philosophy of Mind. (The most thorough recent defense of the line of thought in question is probably the one offered in the late James Ross’s article “Immaterial Aspects of Thought.”)

The “dualism” that results is very different from the Cartesian variety, though. For the mind (or more precisely, the intellect) is not a substance on the Aristotelian-Scholastic view, but rather a power of the soul, and the soul in turn is not a substance either (or at least not a complete substance) but rather the substantial form of the living human body. Neither is the body a substance. It is rather only soul and body together which make a complete substance, where soul and body are just one instance among innumerable others of the hylemorphic form/matter relationship that exists in every material substance. Accordingly, there is no “interaction problem” of the sort that faces the Cartesian. Such a problem arises when we think of the mind as an “immaterial substance” (or as a collection of “immaterial properties”) which must somehow interact with a (mechanistically-defined) material substance via what Aristotelians would call efficient causation. But from an Aristotelian-Scholastic point of view, that is simply a category mistake, or rather a collection of category mistakes. Intellect is rather one of a myriad of powers the soul imparts to the human animal of which it is the substantial form. Thus it is formal causation which relates soul (and therefore mind) to body, not efficient causation. (I have discussed this issue in more detail here, here, and here.)

All of this is bound to sound very odd to the average contemporary philosopher. It will not sound odd, though, to those familiar with the rich conceptual apparatus of the Aristotelian-Scholastic tradition, a system of thought of which most contemporary philosophers of mind are ignorant, or at best know only through the caricatures peddled by early modern philosophers. Working one’s way out of the metaphysical assumptions moderns typically bring to bear on these issues is very difficult and takes time; the temptation is always to try to translate the thought of a Plato, an Aristotle, or an Aquinas into categories contemporary philosophers are familiar with, when what we ought to be doing is recognizing that it is precisely those categories the ancients and medievals would challenge. Thus are Plato the “proto-Cartesian,” Aristotle the “functionalist,” and other ahistorical Frankenstein monsters created. (I had not sufficiently freed myself of such modern assumptions when I wrote Philosophy of Mind, in which there is still too much Cartesianism. Chapter 4 of Aquinas provides a corrective, and a more detailed treatment of how thoroughly wrong contemporary philosophers of mind get the conceptual lay of the land, from an Aristotelian-Thomistic point of view.)

So, from an Aristotelian-Scholastic point of view, the materialist’s “problem” of explaining the three purported kinds of mental phenomena in material terms (where “matter” is understood mechanistically) and the Cartesian’s “problem” of explaining mind-body interaction are pseudo-problems. In short, while for Fodor and other contemporary philosophers of mind there are three mind-body problems, for the Aristotelian-Scholastic philosopher, there is no mind-body problem at all.