The name actuality would better suit the (general) actuality rather (than the actuality of some one thing); the actuality corresponding to the potentiality which brings a thing to actuality. Indeed, when that which was potential arrives at actuality, it owes the latter to something else.[20]
WHAT IN THE BODY IS A PASSIVE CAPACITY, IN THE SOUL IS AN ACTIVE FACULTY.
As to the potentiality which by itself produces that of which it is potentiality, that is, which produces the actuality (corresponding to this potentiality), it is a (Stoic) "habituation;" while the actuality (which corresponds to this habituation) owes its name thereto; for instance, the "habituation" is courageousness; while the actuality is being brave.[21] But enough of this!
INTELLIGIBLE MATTER IS NOT POTENTIAL.
3. The purpose of the preceding considerations was to determine the meaning of the statement that intelligibles are actual; to decide whether every intelligible exist only actually, or whether it be only an actuality; and third, how even up there in the intelligible, where all things are actualities, there can also exist something potentially. If, then, in the intelligible world, there be no matter which might be called potential, if no being is to become something which it not yet is, nor transform itself, nor, while remaining what it is, beget something else, nor by altering, cause any substitution, then there could not be anything potential in this World of eternal essence outside of time. Let us now address the following question to those who admit the existence of matter, even in intelligible things: "How can we speak of matter in the intelligible world, if by virtue of this matter nothing exists potentially? For even if in the intelligible world matter existed otherwise than it does in the sense-world, still in every being would be the matter, the form and the compound which constitutes it." They would answer that in intelligible things, what plays the part of matter is a form, and that the soul, by herself, is form; but, in relation to something else, is matter. Is the soul then potential in respect of this other thing? Hardly, for the soul possesses the form, and possesses it at present, without regard to the future, and she is divisible in form and matter only for reason; if she contain matter, it is only because thought conceives of her as double (by distinguishing form and matter in her). But these two things form a single nature, as Aristotle also says that his "quintessence" is immaterial.
THE SOUL IS THE PRODUCING POTENTIALITY; NOT THE POTENTIALITY OF BECOMING.
What shall we say? Potentially, she is the animal, when it is unborn, though to be born. Potentially she is the music, and all the things that become, because they are transient. Thus in the intelligible world there are things which exist, or do not exist potentially. But the soul is the potentiality of these things.[22]
IN THE INTELLIGIBLE WORLD EVERYTHING IS ACTUAL.
How might one apply actual existence to intelligible things? Each of them exists actually because it has received form, as the statue (the compound) exists actually, or rather, because it is a form, and because its essence is a perfect form. The intelligence does not pass from the potentiality of thinking to the actuality of thinking.[23] Otherwise, it would imply an anterior intelligence which would not pass from potentiality to actuality, which would possess everything by itself; for what exists potentially implies another principle whose intervention brings it to actuality, so as to be something existing actually. A being is an actuality when it always is what it is, by itself. Therefore, all first principles are actualities; for they possess all they should possess by themselves, eternally. Such is the state of the soul which is not in matter, but in the intelligible world. The soul which is in matter is another actuality; she is, for instance, the vegetative soul; for she is in actuality what she is. We shall, therefore, have to admit that (in the intelligible world) everything exists actually, and that thus everything is actuality, because it has rightly been said[24] that intelligible nature is always awake, that it is a life, an excellent life, and that there on high all actualities are perfect. Therefore, in the intelligible world, everything exists actually, and everything is actuality and life. The place of intelligible things is the place of life, the principle and source of the veritable soul, and of intelligence.