4 For, [be it observed,] they themselves, according to their own declarations, were then existing, as a spiritual conception, in consequence of the contemplation of those beings who were arranged as satellites around Pandora. And they indeed continued useless, the Mother accomplishing nothing through their instrumentality, — an idle conception, owing their being to the Saviour, and fit for nothing, for not a thing appears to have been done by them. But the God who, according to them, was produced, while, as they argue, inferior to themselves (for they maintain that he is of an animal nature), was nevertheless the active agent in all things, efficient, and fit for the work to be done, so that by him the images of all things were made; and not only were these things which are seen formed by him, but also all things invisible, Angels, Archangels, Dominations, Powers, and Virtues,— [by him, I say,] as being the superior, and capable of ministering to her desire.
But it seems that the Mother made nothing whatever through their instrumentality, as indeed they themselves acknowledge; so that one may justly reckon them as having been an abortion produced by the painful travail of their Mother. For no accoucheurs performed their office upon her, and therefore they were cast forth as an abortion, useful for nothing, and formed to accomplish no work of the Mother. And yet they describe themselves as being superior to Him by whom so vast and admirable works have been accomplished and arranged, although by their own reasoning they are found to be so wretchedly inferior!
Source: Adversus haereses (New Advent)