2 And not only are they convicted of bringing forward, as if their own [original ideas], those things which are to be found among the comic poets, but they also bring together the things which have been said by all those who were ignorant of God, and who are termed philosophers; and sewing together, as it were, a motley garment out of a heap of miserable rags, they have, by their subtle manner of expression, furnished themselves with a cloak which is really not their own.
They do, it is true, introduce a new kind of doctrine, inasmuch as by a new sort of art it has been substituted [for the old]. Yet it is in reality both old and useless, since these very opinions have been sewed together out of ancient dogmas redolent of ignorance and irreligion. For instance, Thales of Miletus affirmed that water was the generative and initial principle of all things. Now it is just the same thing whether we say water or Bythus. The poet Homer, again, held the opinion that Oceanus, along with mother Tethys, was the origin of the gods: this idea these men have transferred to Bythus and Sige.
Anaximander laid it down that infinitude is the first principle of all things, having seminally in itself the generation of them all, and from this he declares the immense worlds [which exist] were formed: this, too, they have dressed up anew, and referred to Bythus and their Æons. Anaxagoras, again, who has also been surnamed “Atheist,” gave it as his opinion that animals were formed from seeds falling down from heaven upon earth. This thought, too, these men have transferred to “the seed” of their Mother, which they maintain to be themselves; thus acknowledging at once, in the judgment of such as are possessed of sense, that they themselves are the offspring of the irreligious Anaxagoras.
Source: Adversus haereses (New Advent)