Tuesday, October 27, 2026

Rehman on Immortal Souls

In the latest issue of the American Catholic Philosophical Quarterly, philosopher Rashad Rehman kindly reviews my book Immortal Souls: A Treatise on Human Nature.  From the review:

Immortal Souls… is a major philosophical contribution to the metaphysics of human nature and the praeambula fidei… Feser’s work merits the highest praise… Impressively organized, thematically systematized, and distinctively philosophical, [its] depth, scope, and contributions are manifest even to the most vociferously hostile opponent… [It] will remain a timeless contribution to the revival of [Aristotelian-Thomistic philosophy] as the serious competitor to alternative theories of human nature.

Commenting on some “minor drawbacks,” Rehman opines that the book should have devoted less space to some issues and more space to others.  In particular, he suggests that I could have shortened the discussion of eliminative materialism given that I take the view to be self-defeating, and that the discussion of the semantic indeterminacy of material properties and processes is forbiddingly technical to readers new to these issues.  Meanwhile, he thinks the absence of any treatment of the distinction between the sexes makes the book’s treatment of human nature incomplete.

However, I stand by these particular choices about what to include and what to omit.  Eliminative materialism is a position that many regard, quite rightly in my view, as too absurd to take seriously as a live option.  All the same, it has some prominent and clever defenders.  Moreover, I think that some version of eliminativism is impossible to avoid if one consistently pushes through the implications of materialism, and no one would deny that a book like mine ought to have a lot to say about materialism and its implications.  The particular section of the book Rehman refers to is eight pages long, and there are maybe seven or eight further pages scattered elsewhere in the book that are relevant to the topic.  In a book of well over 500 pages, that does not seem to me to be excessive. 

As to the discussion of semantic indeterminacy, this is in my judgment one of the central issues that must be understood in order to see why a materialist account of the intellect is impossible in principle.  The technicalities are simply unavoidable given the nature of the topic and of the literature that has to be addressed in dealing with it.  They are also necessary in order to respond adequately to the various materialist attempts to get around the problem.  In any event, Immortal Souls is not an introductory book or a popularization.  While I think there’s a lot in it that the non-specialist will find useful, there is also a lot in it that readers with little familiarity with academic philosophy are going to find difficult.  But the point of the book is precisely to present as rigorous a defense as possible of the Aristotelian-Thomistic view of human nature.

Finally, in my view a treatment of current controversies over sex and gender would simply have been out of place in a book of this sort.  From the point of view of Scholastic thought, Immortal Souls falls into the category of philosophical anthropology, and from the point of view of analytic philosophy it falls into the category of philosophy of mind.  You simply wouldn’t see a treatment of the differences between the sexes in a general work of Scholastic philosophical anthropology or analytic philosophy of mind, given the topics they traditionally deal with.  It would seem very odd and shoehorned in.

Of course, that’s partly because the nature of the sexes was not a matter of controversy until relatively recently.  But while philosophical anthropology is certainly highly relevant to that controversy, no less relevant to dealing with it are issues that would normally arise instead in the context of a natural law treatment of matters of sexual morality.  Hence, in my judgment the current controversies over sex and gender are best dealt with in a book on that topic, which I have planned in any case.

Anyway, I thank Rehman for his critical engagement with the book, and for his very kind words about it.

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