The question – and this may be neither here nor there, as regards the soul – is whether a body reduced to dust and scattered to the four corners of the wind is still a man; indeed, whether the a particle of ash (no longer with the structural of a body, as it were) could still be called a man, or part of a man.
I take it you grant that one must rely on revelation to predict that the ash or dust that was once a human body (or let’s say that human body was consumed and digested by scavengers) will one day come back together, and be made whole again.
Well, if a human
corpse is not a man but an ex-man, then the body reduced to dust after death is likewise an “ex-man.” (What Anscombe is getting at with her aphorism is that to call a corpse a man is a bit of an equivocation on the term “man.” It no longer has the form of “man.” It is dead organic matter.)
Aquinas believed that the human soul was immortal, but in his commentary on Paul’s first letter to the Corinthians, he actually denies that
you and I qua humans are immortal. There is an important distinction to grasp there.
I do not suggest that the scattered dust that once constituted a human body must come back together for the resurrection of the body. As I articulated before, I take “the body” to be the material cause of a human substance (which means that it must
presently be part of said human substance). If a disembodied human soul is rejoined to matter, then it is resurrected and has regained its body. The matter need not be
the same matter. (Thomists, after all, have their doctrine of protomatter. There is ultimately not distinction between
this matter and
that matter, as both are just an underlying principle of potency, a mass-energy substrata.)
You doubtless do not view it this way, but this has a very Platonic/Cartesian flavor to me. There is the sense of an invisible essence, a certain “je ne sais quoi” of the human organism that is posited.
Well, I think that it is obviously the case that hylemorphic
dualism rises or falls with general hylemorphic
metaphysics (a bit of exposition on the term
essence here). Hylemorphism is a global metaphysical theory, and hylemorphic dualism is just one corollary of it. I don’t posit an invisible essence just for the human; I posit one for every natural substance.
Humans are natural substances, ergo humans have forms. (
Essence just means
real definition, and is perhaps best thought of as
what a substance’s form is. For example, gold is a natural substance, the essence of which is to have atomic number 79, to be malleable and yellow, etc.) By examining the human organism, we can try to draw some conclusions about the human form.
Any human has rationality of the essence just like an acorn laying on the pavement has vegetative growth of the essence (ie. if one were to provide the “real definition” of an oak, it would contain the oak’s capacity to grow). It’s not growing
now, but it is a disposition intrinsic to the kind of the oak, of which the acorn is a part.
Let’s say there’s an explosion, or a predator or scavenger in nature consumes and digests a human person. In what sense, even beyond what has occurred, are the material remains still a “human person.” That’s one point; another is that I still cannot get past the Alzeheimer’s example, or example of someone who has suffered a stroke. The “intellective” faculties of mind are compromised. Why should I be compelled to believe that they exist independently of physicality?
In the former cases, you are right (if this is what you are suggesting) that there
is not a sense in which the exploded body or decomposed remains are a human person. That is precisely what the hylemorphist
is not claiming. (I think the points I made above with regard to corpses and men address this point directly enough.)
But the Alzeheimer’s case is relevantly different. The form is a unifying principle of a natural substance. An Alzeheimer’s patient has not lost his form. (Contrast with the exploded or consumed body, which
has lost its form.) It is more like a tree from which we’ve stripped every leaf. It no longer can collect sunlight and photosynthesize; perhaps it will even die before leaves can grow back. As long as it is alive, though, it nevertheless has the form of a living tree. (After it dies, it is only a “tree” in an equivocal sense. It is really dead organic matter.) The exercise of essential capacities is not necessary
to have a certain form or
to be of a certain kind. That point is not limited to the hylemorphic analysis of humans; it is a global point made for all substances. (And, I think, one runs into difficulties if it is denied. Those who would like to deny the relevance of potential rationality as the defining characteristic of humanity run into issues in their analysis of people who wake up from comas and even people who go to sleep. People do not cease to be human when they stop exercising their rational capacities. This seems to be a basic point, a theory which does not account for which would seem to be missing something substantial.)