2. Since we have distinguished two principles, the one which is the first thinking principle (the Intelligence), and the other which is the second (the Soul), the Principle superior to the first thinking principle must itself not think. In order to think, it would have to be Intelligence; to be Intelligence, it would have to think an object; to be the first thinking principle, it would have to contain this object. Now it is not necessary that every intelligible entity should possess intelligence, and should think; otherwise it would not only be intelligible, but even Intelligence; being thus dual, it would not be the first. On the other hand, intelligence cannot subsist, if there be not a purely intelligible nature ("being"), which is intelligible for Intelligence, but which in itself should be neither intelligence nor intelligible. Indeed, that which is intelligible must be intelligible for something else. As to Intelligence, its power is quite vain, if it does not perceive and does not grasp the intelligible that it thinks; for it cannot think, if it have no object to think; and it is perfect only when it possesses this. Now, before thinking, it must by itself be perfect by nature ("being"). Therefore, the principle through which intelligence is perfect must itself be what it is before it thinks; consequently, it has no need to think, since, before thinking, it suffices to itself. It will, therefore, not think.[11] THE FIRST THINKING PRINCIPLE IS THE SECOND PRINCIPLE. Therefore, the First principle (the One) does not think; the second (Intelligence) is the first thinking principle; the third (the Soul) is the second thinking principle. If the first Principle thought, it would possess an attribute; consequently, instead of occupying the first rank, it would occupy only the second; instead of being One, it would be manifold, and would be all the things that it thought; for it would already be manifold, even if it limited itself to thinking itself. THE FIRST MUST BE ONE EXCLUSIVELY, WHICH WOULD MAKE THOUGHT IMPOSSIBLE. 3. It might be objected that nothing (in all this) would hinder the first Principle from being both single and manifold. We will answer that the manifold needs a single subject. The manifold cannot exist without the One from which it comes, and in which it is; without the One which is counted the first outside of other things, and which must be considered only in itself. Even on the supposition that it co-exists with other things, it must, none the less, while being taken with the other things with which it is supposed to co-exist, be considered as different from them. Consequently, it must not be considered as co-existing with other things, but be considered as their subject (or, substrate), and as existing in itself, instead of co-existing with the other things of which it is the subject. WITHOUT SOMETHING SIMPLE, NOTHING MANIFOLD COULD EXIST.