"Substantial Forms and Evolution"
From The Range of Reason, Chap IV
By Jacques Maritain
WITH REGARD TO the third specific issue — substantial forms and finality — we may wonder whether any vindication of substance, substantial form and finality, however persuasive in itself it may be, can really convince a Pragmatist thinker. For the latter is indeed diposed to admit that we have signposts "telling us what behavior we may expect of things" and "enabling us to adjust successfully to the things that behave." But precisely the "behavior" that substance and substantial form lead us to expect and enable us to adjust ourselves to, is, if I may say so, the intelligible behavior, the very intelligibility of things insofar as their reality is analyzed in terms of being and resolved into the root intelligibility of being; whereas the behavior to which the Pragmatist philosopher is eager to adjust himself is the sense-perceivable behavior of things analyzed in terms of becoming and inter-activity, and resolved in the observability and measurability of "scientific" phenomena.
In the same way, finality, as Doctor Sheldon rightly observes, is the primary reason for becoming, and the deepest stimulus in the drama of the universal process, but I doubt whether we can realize this if we philosophize on the level of the empirico-mathematical explanation of phenomena and not on the level of metaphysics' abstractive intuition. And finality implies that the process tends toward an "end," toward a point where there is no longer any motion, but only repose and possession, so that the universal process and dynamism which permeates the cosmos and which carries along, so to speak, each agent beyond its own particular ends, making creation groan after its accomplishment, has its ultimate reason in the transcendent finality by virtue of which He Who is the self-subsisting Being is desired and loved by every being more than itself. Would such a view be acceptable to Pragmatist philosophy?
On the other hand, whereas I believe that it is perfectly right to emphasize the need for Thomistic philosophy, in the various phases of its conceptualization, to give greater scope to the general idea of dynamism and evolution — the real conquest of modern thought — and to deepen in this connection the traditional notion of substantial form, I think, nevertheless, that such statements should be further developed in order to remain true.
Substance is not a static inert substratum; it is the first root of a thing's activities and, while remaining the same as to its substantial being, it ceaselessly acts and changes — through its accidents, which are an expansion of itself into another, non-substantial, dimension of being. But as substance it does not change. As long as a material substance is not "corrupted" and transformed into another, it is immutable in its metaphysical — merely intelligible and non- experiential — reality of substance. Man's nature, while keeping its fixed specific determination, owing to a substantial form which is spiritual and subsisting, is, of course, capable of an endless increase of knowledge and intellectual achievement — this is the privilege of reason. But the root power and natural strength of the human intellect are not able to go beyond the capacities of reason and to pass into the degree of intellectuality of the least of the angels.
I am convinced that the hylomorphic theory involves no incompatibility with the discoveries of modern physics; and the suggestion that "the Scholastic should lay more stress on recent physics and less on chemistry" seems to me highly commendable. Surely, as Doctor Sheldon writes, "it would present his Thomistic cosmology in a fairer light, bringing out its power of adaptation and progressive character." Nevertheless, I should like to point out that it would be illusory to seek a verification of the hylomorphic theory in modern physics, for the one and the other are at work on different levels of thought, and the entities constructed by the physico-mathematical explanation of matter involve a great deal of symbolization: they sound like entia rationis grounded in the nature of things rather than like ontological realities.
Finally, as concerns evolution, I believe that the evolutive process of nature and the notion of substantial form can and must be reconciled. Yet Doctor Sheldon put his finger on the crucial point when he wrote: "The difficulty is to see how, if a substantial form is fixed and definite, it can contain a principle that allows for its own transformation, not merely into another substantial form, but into a greater one." This difficulty is a logical impossibility indeed; no substantial form can be transformed into another; when a substantial change occurs, the new substantial form is drawn out ("educed") the potentiality of matter according to the ultimate root dispositions introduced in matter by the physical agents which modify atomic structure and cause the transmutation of an element, or, in the case of compounds, by the activities of the very substances which are in the process of "corruption," and which will cease to exist at the instant in which the new substance comes into being.
The new substance can be more "perfect" — imply a higher degree of integration and individuality — in the ontological scale of physical nature, not only because matter (prime matter) "aspires" to the full actualization of all the forms it contains potentially, but because the new more perfect" substance results from an atomic redistribution which, in its capacity of an "ultimate disposition," requires the "eduction" of a higher form, or because, in the case of compounds, this new "more perfect" substance is the integration, in a new formal and subsisting unity, of the activities brought about in matter by the antecedent substances which "generate" it at the instant when they destroy each other (and whose forms remain virtually in the new substantial form then educed). This also presupposes that the entire cosmos and the interaction of all its energies co-operate in the production of the new substance, that is, in the "eduction" of the new substantial form.
Now, when it comes to the biological realm, a new problem arises; new living organism has of necessity the same specific substantial form as the organism or organisms from which it proceeds. How then, is biological evolution to be conceived in terms of substantial forms? I think there are two possible ways of explaining it. First of all, species (the ontological species, not the taxonomic species dealt with in botany, zoology or genetics) could be understood in a more dynamic as well as in a more extensive manner. When I say "a more extensive manner," I mean that such large groups as those which classification terms families, orders, etc., should perhaps be considered as belonging to one and the same ontological species. When I say "a more dynamic manner," I mean that the substantial form, in the realm of life, could be considered as protruding, in its virtualities, beyond the capacities of the matter it informs in given conditions, like, for example, an architectural style or poetic idea which we might imagine as thrown into matter and working it by itself. In short the substantial form would then be viewed as an ontological impulse realizing itself in various patterns along the line of a certain phylum. Yet such evolution could, of course, only take place within the limits of the phylum or the ontological species in question.
Secondly, concerning the hypothetical origin of the various phylums themselves, if now we take into account the transcendent action of the First Cause, we may obviously conceive that (particularly in those formative ages when the world was in the state of its greatest plasticity, and when the divine influx was penetrating nature and completing the work of creation) that existence-giving influx of God, passing through created beings and using them as instrumental causes, was able — and is still able — to heighten the vital energies which proceed from the form in the organism it animates, so as to produce within matter, I mean within the germ-cells, dispositions beyond the limits of that organism's specificity. As a result, at the moment of generation a new substantial form, specifically "greater" or more elevated in being, would be educed from the potentiality of matter thus more perfectly disposed.
These much-too-summary considerations may give perhaps some idea of the manner in which the fact of evolution (leaving aside what concerns the origin of man which entails quite different problems)* is to be integrated into Scholastic philosophy. Would such a way of thinking have a meaning from the Pragmatist point of view? That is another question.
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* The profound ontological break in continuity introduced, beneath the apparent continuity with which science deals, by the advent of a spiritual soul which can come to exist only as immediately created by God, presupposes not only the above-mentioned action of the creative influx, the principal agent of evolution, passing through nature, but also a special intervention of God to create a spirit, a soul "in His own image" which is the entelechy of a new living species, and by virtue of which the body of the first human being also represents, metaphysically speaking, an absolute beginning, and has God alone as its engendering cause and Father, even if the body in question resulted from the infusion of a human soul into a pre-ordained animal cell — which, by the very fact of the infusion was changed in its very essence, to the point of being contra-distinguished to the whole animal realm.