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Thứ Hai, 29 tháng 4, 2013


David Bentley Hart’s recent reply to me (to which I responded here) was not his only rejoinder to his critics.  In the Letters section of the May issue of First Things, he makes a number of other remarks intended to clarify and defend what he said in his original article on natural law (which I had criticized here).  The section is behind a paywall, but I will quote what I think are the most significant comments.  Unfortunately, they do nothing to make Hart’s position more plausible, nor even much clearer.

Hume is where the Hart is

One of the most surprising things about Hart’s original piece was that it seemed to concede the Humean thesis that one cannot derive an “ought” from an “is,” or “value” from “fact” -- a thesis that does not sit well with the classical tradition in metaphysics that Hart sympathizes with.  It is worthwhile quoting the relevant passage at some length, to give context:

[T]he natural law theorist insists that the moral meaning of nature should be perfectly evident to any properly reasoning mind, regardless of religious belief or cultural formation. 

Thus, allegedly, the testimony of nature should inform any rightly attentive intellect that abortion is murder, that lying is wrong, that marriage should be monogamous, that we should value charity above personal profit, and that it is wicked (as well as extremely discourteous) to eat members of that tribe that lives over in the next valley. “Nature,” however, tells us nothing of the sort, at least not in the form of clear commands; neither does it supply us with hypotaxes of moral obligation. In neither an absolute nor a dependent sense—neither as categorical nor as hypothetical imperatives, to use the Kantian terms—can our common knowledge of our nature or of the nature of the universe at large instruct us clearly in the content of true morality.

For one thing, as far as any categorical morality is concerned, Hume’s bluntly stated assertion that one cannot logically derive an “ought” from an “is” happens to be formally correct. Even if one could exhaustively describe the elements of our nature, the additional claim that we are morally obliged to act in accord with them, or to prefer natural uses to unnatural, would still be adventitious to the whole ensemble of facts that this description would comprise. 

The assumption that the natural and moral orders are connected to one another in any but a purely pragmatic way must be logically antecedent to our interpretation of the world; it is a belief about nature, but not a natural belief as such; it is a supernatural judgment that renders natural reality intelligible in a particular way. I know of many a stout defender of natural law who is quick to dismiss Hume’s argument, but who—when pressed to explain why—can do no better than to resort to a purely conditional argument: If one is (for instance) to live a fully human life, then one must . . . (etc.). But, in supplementing a dubious “is” with a negotiable “if,” one certainly cannot arrive at a categorical “ought.”

In abstraction from specific religious or metaphysical traditions, there really is very little that natural law theory can meaningfully say about the relative worthiness of the employments of the will.

End quote.  Now, in the Letters section of the May First Things, Hart responds to critics of these remarks as follows:

I said only that Hume’s argument is “formally correct,” which is philosophical parlance for “given its premises, its conclusions follow.”  I was not advocating Hume’s premises.

and

[A]t no point in my column did I say that moral truths absolutely cannot be deduced from nature… I said only that such truths cannot be deduced from the understanding of nature that modernity presumes, and hence natural law arguments cannot be made from a position that has already conceded the legitimacy of that understanding…

End quote.  Now, the first thing to say is that that is in fact not quite what Hart originally said (even if it is what he meant), and his critics were within their exegetical rights in interpreting him as they did.  For as the passage quoted above clearly shows, what Hart wrote was that “in neither an absolute nor a dependent sense,” even if we “exhaustively describe the elements of our nature,” the “facts that this description would comprise” would entail no “moral meaning,” would never tell us what we are “morally obliged” to do.  Such moral conclusions are, he wrote, “additional” and “adventitious” to the “facts” about nature, are indeed “supernatural” -- where he speaks throughout simply of “nature” or the “natural” (not of “modernity’sunderstanding of nature”), which gives the impression that he thinks that the natural as such cannot give us moral conclusions, that such conclusions can only come from outside the natural as such. 

Moreover, Hart went on in his original article to say that we “find a great many practices abhorrent and a great many others commendable not because the former transparently offend against our nature while the latter clearly correspond to it” but rather because of “uncanny voices that seemed to emanate from outside the totality of the perceptible natural order.”  And he says that it would be merely “an exercise in suasive rhetoric (and perhaps something of a pia fraus)” to pretend that these moral judgments reflected an awareness of “natural” truths rather than something “supernatural.”  Indeed, he even says that it is only in light of the “apocalyptic” and the “miraculous” that we can see nature as having moral implications.

All of this clearly implies that “Hume’s premises” are correct, that the “facts” about what “is” the case where nature as such is concerned can never in principle tell us what we “ought” to do -- the difference between Hume and Hart being that Hart thinks there is something beyondnature that can tell us this, while Hume does not.  If this is not what Hart meant, I am glad to hear it, but he cannot blame his critics for reading him as they did, given what he actually wrote.  If they misunderstood him, that is only because he expressed himself in a very misleading way.

In fairness to Hart, he does also indicate at a couple of places in his original piece that whether we see nature as having moral implications depends on our “metaphysical” convictions, and at the end of the article says that an appeal to nature is not going to have force “in an age that has been shaped by a mechanistic understanding of the physical world, a neo-Darwinian view of life, and a voluntarist understanding of the self.”  In isolation such remarks might be read as leaving it open that given a different, non-mechanistic metaphysics, nature might have moral implications even apart from the “supernatural,” the “apocalyptic,” or the “miraculous.”  But in the context of the article as a whole, and especially in the context of the remarks quoted above, the reader can certainly be forgiven for reading Hart as endorsing the Humean thesis that nature as such as no moral implications -- especially given that while at one point Hart seems to distinguish the “supernatural” from the “metaphysical,” in the rest of the article he seems to assimilate them.

Moreover, what he gives us with one hand in the May First Things Letters section, he soon takes back with the other.  For having initially said that he was “not advocating Hume’s premises,” nor “say[ing] that moral truths absolutely cannot be deduced from nature,” he then goes on to write:

[S]ince there seems to be some question as to my own view of natural law theory, as such, I may as well be forthcoming on the matter (and confirm my critics’ worst suspicions).  My view is that natural law as a moral concept makes sense only if one starts from the presupposition that nature is a supernatural dispensation…

Nature loves to hide, and left to herself she is too capricious and protean to provide us any sort of moral grammar that is truly binding upon us…

However rich the tradition of moral and metaphysical reflection there is behind the language of natural law, I believe that most of the arguments it produces are formally incorrect (that is, even if both their premises and their conclusions should happen to be true, the latter do not actually follow directly from the former, and so some adventitious mediation -- such as the synthesizing action of a supernaturally illuminated conscience, where the law is “written on the heart” -- is required to bring them together).

End quote.  This makes it sound like Hart does after all think that moral conclusions (or “most” of them) cannot validly be derived from premises about nature alone, even given the proper “metaphysical reflection,” but require something “supernatural” or beyond nature.  And that (minus the reference to the supernatural) sounds pretty close to the Humean view, or perhaps something even stronger than the Humean view (since a Humean might allow that an “ought” could follow from an “is” given a metaphysics sufficiently different from anything Humeans would find plausible).  So Hart’s purportedly clarifying remarks in fact clarify little.

A second problem with Hart’s remarks about Hume in the Letters section is that it is simply too glib to assert matter-of-factly that the Humean position follows even given a non-classical metaphysics.  For as it happens, Hume’s position is controversial even among philosophers who do not endorse classical (e.g. Platonic, Aristotelian, or Scholastic) metaphysics.  For instance, John Searle and Hilary Putnam are two major contemporary non-classical, analytic philosophers who have criticized the Humean position.  Philippa Foot and Michael Thompson, while embracing a kind of neo-Aristotelian ethics, do not do so in a way that tries to challenge a broadly naturalistic metaphysics.  Other examples could be cited.  That does not mean that Hart is wrong to think that a purely naturalistic, mechanistic conception of nature is not at the end of the day going to give you objective morality; indeed, I think he is right about that much.  The point, though, is that he is just wrong if he thinks that contemporary philosophy has gotten so far away from the classical tradition that there is no longer significant common ground by reference to which the classical natural law theorist might engage the other side.

This brings us to a third problem with Hart’s remarks about Hume, which is that if all Hart was saying in his original piece is that “given[modernity’s metaphysical] premises, [Humean, anti-natural law] conclusions follow,” then his point was either completely banal or utterly question-begging.  It is completely banal if his piece was directed at the classical or “old” natural law theory, for (as I noted in my earlier replies to Hart) “old” natural law theorists are all well aware that their position works only given classical metaphysics, that they need therefore to defend classical metaphysics if they are going to derive moral conclusions from premises about nature, and that doing so in the contemporary intellectual context is a tall order.  On the other hand, Hart’s point is utterly question-begging if directed at the “new” natural law theory, since part of the very point of that theory is to show that natural law arguments can be defended even given a non-classical metaphysics and Hume’s strictures about “is” and “ought.”  Hart says absolutely nothing to show that the “new natural lawyers” are wrong to think this; he simply assumesthat they are.

Hume or Aquinas, John Finnis andRalph McInerny

That brings us to a second problem with Hart’s articles overall, which is (as I also noted in my earlier replies to him) that he never makes it clear whether it is the “new” natural law theory, or the “old” natural law theory, or both, that he has in his sights.  His remarks in the Letters section of the May First Thingsmay initially seem to clarify the matter at last.  For he writes:

I said only that [moral] truths cannot be deduced from the understanding of nature that modernity presumes, and hence natural law arguments cannot be made from a position that has already conceded the legitimacy of that understanding (by trying to change natural law theory into either a form of Kantian categorical imperative or some sort of utilitarian calculus).

and

My column concerned those who make no appeal to [the] desire [of the heart for God], and who consent to secular reason’s decision to bracket the supernatural out of public consideration, and who think that natural law can be demonstrated in a purely naturalistic key…

Hart had claimed in his original piece that “names are not important,” and in the May Letters section he says:

[T]he names I withhold are specifically those of thinkers who do not practice classical natural law theory at all.

and

[C]lassical natural law theory… was not the topic I addressed.

and

I underestimated the degree to which what I thought a simple distinction between classical natural law theory and “natural law theory” reconfigured as a form of modern practical reason would prove difficult to grasp.

and

[It is those thinkers] armed with natural law arguments of an oddly metaphysically denatured kind… [arguing] on the basis of a kind of Kantian appeal to categorical imperatives, scaffolded within a consequentialist account of natural goods… who were the subject of my column.

End quote.  All of that seems to imply very strongly that it is the “new” natural law theory alone that he had in his sights.  But there are two problems with this interpretation.  First, why in that case did Hart go on at such length in his two articles about final causes, Humean strictures about “is” and “ought,” and the like?  For again, “new” natural law theorists accept the Humean position and deny that one need appeal to a metaphysics of final causes in order to practice natural law theory.  So to insist that Hume’s position makes their approach impossible and that their approach requires premises about final causes to which they are not entitled quite blatantly begs the question against them; indeed, it misses the whole point of the “new natural law,” which is to reconstruct natural law in post-Aristotelian, Humean-friendly terms.  (I hasten to emphasize that, as an unreconstructed classical or “old” natural law theorist, I share Hart’s disagreement with the “new natural law” approach.  The trouble is that his critique has no force against it whatsoever.)

Second, despite Hart’s apparently clear-as-day insistence that it was only non-classical natural law theorists he had in mind, he goes on at the end of his remarks in the May Letters section to write:

[F]rankly, the whole “What alternative do we have?” question strikes me as one corrupted by fantasy.  It is not as if natural law theory, classical or modern, is some sort of effective dialectical strategy that has had any success in the secular realm, or that ever will have such success.  Natural law theory is a practice confined to the circles of natural law theorists, because it requires enclosed, conservatory conditions to flourish; in the open air, it quickly withers…

I am in the end quite happy for believers in natural law theory to continue plying their oars, rowing against the current (so long as they do so in keeping with classical metaphysics), but I do not think they are going to get where they are heading; so I shall just watch from the bank for a while and then wander off to the hills (to look for saints and angels).

And to Howard P. Kainz, who asks what “other approach” one should take to “modern moral life,” Hart answers:

I encourage Mr. Kainz to pursue classical natural law theory (which was not the topic I addressed), if he likes.  The Great Commission also comes to mind.  (Do what you think best.)

End quote.  All of this makes it sound as if Hart thinks that classical natural law theory is, after all, not much better than the “new” version, even given its “classical metaphysics.”  Moreover, the comments about “saints and angels” and “the Great Commission,” in addition to being smug, seem to imply that classical natural law theory, no less than the “new” version, has little or no force outside of a “supernatural” context.  In which case Hart’s remarks in his two articles do seem intended to apply to the “old” natural law theory as well as to the “new.”

It would seem, then, that it is not just nature that likes to hide.  Hart’s position on natural law is opaque, and remains opaque even after two attempts at clarification.  I hasten to emphasize that this judgment is in no way meant to detract from the admiration and appreciation we owe the author of Atheist Delusions. 

Thứ Sáu, 26 tháng 4, 2013


Metaphysician E. J. Lowe discusses ontology, physics, Locke, Aristotle, logic, laws of nature, potency and act, dualism, science fiction, and other matters in an interview at 3:AM Magazine

Over at The Montreal Review, Alex Sztuden responds to Leiter and Weisberg’s review of Thomas Nagel’s Mind and Cosmos.

Frank Beckwith replies to David Bentley Hart on natural law in The Catholic Thing.

Colin McGinn reviews Ray Kurzweil’s How to Create a Mindat The New York Review of Books.  (HT: Siris)

The Table is the new blog of Biola University's Center for Christian Thought.  The Center is sponsoring a conference on Neuroscience and the Soul, to be held May 10 - 11.

Classifying Reality, an anthology edited by David Oderberg, is forthcoming in May.

Welcome to Angelico Press, a new publisher of new and old books in theology and philosophy.

New Atheist Sam Harris discusses atheism and martial arts.  (HT: Dave Lull)  As it happens, there is some footage available of Harris in martial arts action -- pretty impressive!

Thứ Ba, 23 tháng 4, 2013


In a widely discussed piece in the March issue of First Things, theologian David Bentley Hart was highly critical of natural law theory.  I was in turn highly critical of his article in a response posted at First Things(and cross-posted here).  Hart replied to my criticisms in a follow-up article in the May issue of First Things.  I reply to Hart’s latest in an article just posted over at Public Discourse.

For related recent posts, see my responses to Hart’s defenders Rod Dreherand Thaddeus Kozinski.

Thứ Năm, 18 tháng 4, 2013


As students of logic know, not every appeal to authority is a fallacious appeal to authority.  A fallacy is committed only when the purported authority appealed to either does not in fact possess expertise on the subject at hand, or can reasonably be supposed to be less than objective.  Hence if you believed that PCs are better than Macs entirely on the say-so of either your technophobic orthodontist or the local PC dealer who has some overstock to get rid of, you would be committing a fallacy of appeal to authority -- in the first case because your orthodontist, smart guy though he is, presumably hasn’t much knowledge of computers, in the second case because while the salesman might have such knowledge, there is reasonable doubt about whether he is giving you an unbiased opinion.  But if you believed that PCs are better than Macs because your computer science professor told you so, there would be no fallacy, because he presumably both has expertise on the matter and lacks any special reason to push PCs on you.  (That doesn’t necessarily mean he’d be correct, of course; an argument can be mistaken even if it is non-fallacious.)

Similarly, not every ad hominem attack -- an attack “against the man” or person -- involves a fallacious ad hominem.  “Attacking the man” can be entirely legitimate and sometimes even called for, even in an argumentative context, when it is precisely the man himself who is the problem.

Attacking a person involves a fallacy when what is at issue is whether some claim the person is making is true or some argument he is giving is cogent, and where the attacker either (a) essentially ignores the question of whether the claim is true or the argument cogent, and instead just attacks the person giving it (in which case we have a kind of red herring fallacy) or (b) suggests either explicitly or implicitly that the claim can be rejected false or the argument rejected as not cogent on the basis of some irrelevant purported fault of the person giving it (in which case we have a poisoning the well fallacy, or perhaps a tu quoque).

Hence, suppose you put forward an argument against “same-sex marriage” and someone responds either by calling you a bigot, or by suggesting that the only reason you are putting forward such an argument is to rationalize some religiously motivated prejudice.  Here we have classic examples of ad hominemfallacies.  In the first case the person responding to you is trying to change the subject -- trying to make you and your alleged bigotry the issue, where what is at issue is the cogency of your argument.  In the second case, the person is not changing the subject -- he is addressing the question of whether your argument is cogent -- but he is nevertheless appealing to an irrelevant consideration in assessing its cogency, since whether your argument is cogent or not has nothing essentially to do with your motives for putting it forward.

However, if what is at issue is not a person’s claim or argument, but rather precisely some aspect of the person himself, there is no fallacy in calling attention to his defects, and in some cases it can even be entirely appropriate to do so in a polemical fashion. 

For example, suppose what is at issue is whether a certain person is a reliable witness or an unbiased source of information, as in a court case.  Then there is no fallacy whatsoever in showing that his track record reveals him to be a compulsive liar, or to have a bad memory or bad eyesight, or to have been drunk at the time of the events he claims to have witnessed, or to have a personal stake in the outcome of the case.  These are ad hominem criticisms -- criticisms directed “against the man” himself -- but there is no fallacy involved, because the credibility of the man himself is precisely what is at issue.

Or suppose that what is at issue is, again, not whether a certain claim is true or a certain argument cogent, but instead whether a certain person is reasonable, intellectually honest, worth trying to have a conversation with, etc.  For example, suppose someone in a combox shows himself by his pattern of behavior to be an ignoramus, a crank, a troll, etc. -- say by repeatedly making sweeping, ungrounded, or unhinged assertions, dismissing ideas and arguments he evidently does not even understand or books he hasn’t bothered to read, or indeed by committing ad hominem and other fallacies right and left.  There is in such a case nothing wrong with calling such a person an ignoramus, a crank, a troll, etc. and refusing to engage with him any further.  That is certainly an attack on the person, but it is no fallacy.  It is just a straightforward inference from the facts, a well-founded judgment about him and his behavior, rather than a fallacious response to some argument he has given.

Or suppose someone gains a reputation for expertise on some important matter of public controversy when in fact his views about the matter are laughably off-base and demonstrably ill-informed.  Suppose further that he manifests extreme arrogance and dismissiveness toward those who actually do have expertise on the matter, where the fact of his unjustified self-confidence only serves to reinforce, in those who don’t know any better, the false impression that he must know what he is talking about.  Here too an attack on the person himself is legitimate precisely because what is at issue is one of his personal qualities, viz. his arrogant pretense of expertise.  Indeed, ridicule and other polemical methods can be legitimate tools in such an attack, since arrogant pretense can often effectively be countered in no other way, and treating the offender more gently might only reinforce the false impression that he and his views are respectable.  Hence it is, for example, not only legitimate, but in my view imperative, not only to refute the sophistries of smug hacks like Richard Dawkins and Lawrence Krauss, but to administer a severe rhetorical beating as one does so.

[Here I must digress to address a pet peeve.  Something called “Feser’s tone” is the subject of occasional handwringing, not only among some of my secularist critics, but also among a handful of bed-wetters in the Christian blogosphere.  But there is no such thing as “Feser’s tone,” if that is meant to refer to some vituperative modus operandi of mine.  Sometimesmy writing is polemical; usually it is not.  I have written five books and edited two others.  Exactly one of them -- The Last Superstition -- is polemical.  Of course, some of my non-academic articles and blog posts are also polemical.  But that is an approach I take only to a certain category of opponent, and typically toward people who have themselves been polemical and are merely getting a well-earned taste of their own medicine.  Complaining about this is like complaining about police who shoot back at bank robbers.  I’ve addressed the question of why and under what circumstances polemics are justified in this post and in other posts you’ll find linked to within it.  End of digression.]

Another example.  The tu quoque is a species of ad hominem fallacy in which a claim is rejected merely because the person advancing it does not act in a way consistent with it.  But there are cases where the fact that a person’s actions are inconsistent with the claim he is making is clearly relevant to evaluating the claim.  Suppose, for instance, that someone asserts that it is not possible to make assertions.  This is a performative self-contradiction, and while the probative value of identifying performative self-contradictions is a matter of philosophical controversy, it is legitimate at least to wonder whether a view that entails such a contradiction is coherent.  If someone could carry out a certain course of action that he recommends to others but does not bother even to try to do so himself -- the lush who condemns others for their drinking, say -- that by itself obviously does not show that his advice is not good advice.  Mere hypocrisy is not of much epistemological interest.  But if there is reason to think that someone could not even in principle adopt a certain policy, then it is at least questionable whether the policy is a good one, or reflects a coherent train of thought.

Finally, there are certain positions the very entertaining of which cannot plausibly fail to reflect some degree of moral defect in the person who advances them.  For moral character involves, in part, the having of morally upright sensibilities, and these sensibilities will tend to lead a person to regard certain actions as beyond the pale and unworthy of serious consideration.  Hence that a given person does not so regard them is evidence of defective sensibilities.  Suppose, for example, that someone seriously suggested that there are good arguments in defense of torturing babies “for fun.”  It is hard to see how someone could sincerely believe such a thing unless his moral sensibilities were deeply corrupt.  (Whether he is culpable for this corruption is a question I leave to one side as irrelevant to the present point.) 

Notice what I am not saying.  I am not saying that “You are a bad person; therefore your argument is invalid!” is a good response.  It is nota good response; that would be an ad hominem fallacy.  If the practices a person is defending really are immoral, there should be independent reasons, having nothing to do with his personal character, that show that they are. 

All the same, if they are immoral, and if moral character is in part a matter of having the right sensibilities, and if a person shows by what he is willing to regard as a live option that he does not have the right sensibilities, then there is no fallacy in pointing this out.  Indeed, not to point it out might in some cases threaten to undermine the moral sensibilities that prevail in society at large, insofar as it might make certain immoral actions seem respectable or defensible.  (For more on this issue, see my discussion of Elizabeth Anscombe’s views on the subject in an earlier post.)

There are at least five sorts of case, then, in which criticism “of the man” can be legitimate and certainly not fallacious, even when the larger context is one in which arguments are being weighed: when determining whether someone’s testimony is likely to be reliable; when evaluating his worthiness as a philosophical conversation partner;  when exposing the fraudulence of his public reputation for expertise on some matter; when exposing performative self-contradictions associated with some philosophical position; and when noting that a person’s willingness to take certain views seriously is evidence of a corruption of his moral sensibilities.  None of this shows that a person’s claims or arguments themselves are undermined merely by calling attention to his personal defects.  To suppose that it does would be fallacious.  But those who shout “Ad hominem!” too often do not know what an ad hominem fallacy actually is.