a state that follows not from its essence but from something else. Something else would thus exert an influence upon it, which the preceding principles rule out. Moreover, since it is, as we shall explain, the principle of every existent, it apprehends from its own essence whatever it is the principle of. It is the principle of complete existents as individuals, and of things subject to generation and corruption primarily as species and, through these, as individuals.

He said:

Nor can it apprehend these changing things as they change, such that at one time it apprehends them as existent, not nonexistent, and at another as nonexistent, not existent; and for each of