Enneads IV.7: Of the Immortality of the Soul: Polemic Against Materialism
No Atomic Aggregation Could Produce a Self-harmonizing Unity
3. (b.) (No aggregation of atoms could form a whole that would be one and sympathetic with itself.) Others, on the contrary, insist that the soul is constituted by the union of atoms or indivisibles (as thought Leucippus, Democritus and Epicurus.) To refute this error, we have to examine the nature of sympathy (or community of affection, a Stoic characteristic of a living being,) and juxtaposition. On the one hand an aggregation of corporeal molecules which are incapable of being united, and which do not feel cannot form a single sympathetic whole such as is the soul, which is sympathetic with herself. On the other hand, how could a body or extension be constituted by (a juxtaposition of) atoms?
SOUL IS A SIMPLE SUBSTANCE, WHILE EVERY BODY IS COMPOSED OF MATTER AND FORM.
(c.) (Every body is a composite of matter and form, while the soul is a simple substance.) Inasmuch as matter possesses no quality, the matter of no simple body will be said to possess life in itself. That which imparts life to it must then be its form. If form is a “being,” the soul cannot simultaneously be matter and form; it will be only matter or form. Consequently, the soul will not be the body, since the body is not constituted by matter exclusively, as could be proved analytically, if necessary.
IF SOUL IS ONLY AN AFFECTION OF MATTER, WHENCE THAT AFFECTION?
(d.) (The soul is not a simple manner of being of matter, because matter could not give itself a form.) Some Stoics might deny that form was a “being,” asserting the soul to be a mere affection (or, manner of being) of matter. From whence then did matter acquire this affection and animating life? Surely matter itself could not endow itself with a form and a soul. That which endows matter or any body with life must then be some principle alien and superior to corporeal nature.
NO BODY COULD SUBSIST WITHOUT THE POWER OF THE UNIVERSAL SOUL.
(e.) (No body could subsist without the power of the universal soul.) Besides no body could subsist without the power of the universal Soul (from Numenius). Every body, indeed, is in a perpetual flow and movement (as thought Heraclitus, in Plato, Cratylus), and the world would soon perish if it contained nothing but bodies, even if some one of them were to be called soul; for such a soul, being composed of the same matter as the other bodies, would undergo the same fate that they do; or rather, there would not even be any body, everything would remain in the condition of shapeless matter, since there would exist no principle to fashion it. Why, there would not even be any matter, and the universe would be annihilated to nothingness, if the care of keeping its parts united were entrusted to some body which would have nothing but the name of soul, as for instance, to air, or a breath without cohesion, which could not be one, by itself. As all bodies are divisible, if the universe depended on a body, it would be deprived of intelligence and given up to chance. How, indeed, could there be any order in a spirit which itself would need to receive order from a soul? How could this spirit contain reason and intelligence? On the hypothesis of the existence of the soul, all these elements serve to constitute the body of the world, and of every animal, because all different bodies together work for the end of all; but without the soul, there is no order, and even nothing exists any more.
IF THE SOUL IS NOT SIMPLE MATTER, SHE MUST BE A SUBSTANTIAL FORM.
4. (f) (If the soul is anything but simple matter, she must be constituted by a substantial form.) Those who claim that the soul is a body are, by the very force of the truth, forced to recognize the existence, before and above them, of a form proper to the soul; for they acknowledge the existence of an intelligent spirit, and an intellectual fire (as do the Stoics, following in the footsteps of Heraclitus, Stobaeus). According to them, it seems that, without spirit or fire, there cannot be any superior nature in the order of beings, and that the soul needs a location where she may be built up. On the contrary, it is bodies alone that need to be built up on something, and indeed, they are founded on the powers of the soul. If really we do believe that the soul and life are no more than a spirit, why add the qualification “of a certain characteristic,” a meaningless term employed when forced to admit an active nature superior to that of bodies. As there are thousands of inanimate spirits, not every spirit is a soul. If only that spirit is a soul which possesses that “special characteristic,” this “special characteristic” and this “manner of being” will either be something real, or will be nothing. If they are nothing, there will be nothing real but spirit, and this alleged “manner of being” is nothing more than a word. In that system, therefore, nothing but matter really exists. God, the soul, and all other things are no more than a word; the body alone really subsists. If, on the contrary, that “manner of being” is something real, if it is anything else than substrate or matter, if it resides in matter without being material or composed of matter, it must then be a nature different from the body, namely, a reason (by a pun).
THE BODY EXERTS A UNIFORM ACTION, WHILE THE SOUL EXERTS A VARIED ONE.
(g.) (The body exerts an uniform action, while the soul exerts a very diverse action.) The following considerations further demonstrate the impossibility of the soul being a body. A body must be hot or cold, hard or soft, liquid or solid, black or white, or qualities differing according to its nature. If it is only hot or cold, light or heavy, black or white, it communicates its only quality to what comes close to it; for fire could not cool, nor ice heat. Nevertheless, the soul produces not only different effects in different animals, but contrary effects even in the same being; she makes certain things solid, dense, black, light, and certain others liquid, sparse, white, or heavy. According to the different quality of the body, and according to its color, she should produce but a single effect; nevertheless, she exerts a very diverse action.