Perhaps, however, our author did not mean that this was universally true; he is speaking only of The Good.
But then, if The Good is an essence, and still more, if It is that which transcends all existence, how can It have any contrary?
That there is nothing contrary to essence is certain in the case of particular existences — established by practical proof — but not in the quite different case of the Universal.
But of what nature would this contrary be, the contrary to universal existence and in general to the Primals?
To essential existence would be opposed the non-existence; to the nature of Good, some principle and source of evil. Both these will be sources, the one of what is good, the other of what is evil; and all within the domain of the one principle is opposed, as contrary, to the entire domain of the other, and this in a contrariety more violent than any existing between secondary things.
For these last are opposed as members of one species or of one genus, and, within that common ground, they participate in some common quality.