Ennead V.5 [32]: That the intelligibles are not outside the Intellect, and on the Good · 4

Since there is this Good in any good thing—the specific difference by which the combination becomes good—it must enter from elsewhere ​than the world of things: that source must be a Good absolute and isolated.

Thus is revealed to us the Primarily existent, the Good, above all that has being, good unalloyed, containing nothing in itself, utterly unmingling, all-transcending, cause of all.

Certainly neither Being nor Beauty springs from evil or from the neutral; the maker, as the more consummate, must surpass the made.