Enneads II.9: Against the Gnostics; or, That the Creator and the World are Not
Second Ennead, Book Nine
Against the Gnostics; or, That the Creator and the World are Not Evil.
The Supreme Principles Must Be Simple and Not Compound
1. We have already seen that the nature of the Good is simple and primary, for nothing that is not primary could be simple. We have also demonstrated that the nature of the Good contains nothing in itself, but is something unitary, the very nature of the One; for in itself the One is not some thing to which unity could be added, any more than the Good in itself is some thing to which goodness could be added. Consequently, as both the One and the Good are simplicity itself, when we speak of the One and the Good, these two words express but one and the same nature; they affirm nothing, and only represent it to us so far as possible. This nature is called the First, because it is very simple, and not composite; it is the absolute as self-sufficient, because it is not composite; otherwise it would depend on the things of which it was composed. Neither is it predicable of anything (as an attribute in a subject) for all that is in another thing comes from something else. If then this nature be not in anything else, nor is derived from anything else, if it contain nothing composite, it must not have anything above it.
THE ONLY SUPREME PRINCIPLES MUST THEN BE UNITY, INTELLIGENCE AND SOUL.
Consequently there are no principles other (than the three divine hypostatic substances); and the first rank will have to be assigned to Unity, the second to Intelligence, as the first thinking principle, and the third to the Soul. Such indeed is the natural order, which admits of no further principles, in the intelligible world. If less be claimed, it is because of a confusion between the Soul and Intelligence, or Intelligence with the First; but we have often pointed out their mutual differences. The only thing left is to examine if there might not be more than these three hypostatic substances; and in this case, what their nature might be.
THE ARISTOTELIAN DISTINCTION OF POTENTIALITY AND ACTUALITY IS NOT APPLICABLE TO DIVINITY.
The Principle of all things, such as we have described it, is the most simple and elevated possible. The (Gnostics) are wrong in distinguishing within that (supreme Principle) potentiality from actualization; for it would be ridiculous to seek to apply to principles that are immaterial and are actualizations, that (Aristotelian) distinction, and thus to increase the number (of the divine hypostatic substances.)