7 Absurd is such presumption, and truly an opinion of men totally destitute of the truth. For, that this Æon is superior to themselves, and of greater antiquity, they themselves acknowledge, according to their own system, when they affirm that they are the fruit of the Enthymesis of that Æon who suffered passion, so that this Æon is the father of their mother, that is, their own grandfather. And to them, the later grandchildren, the search after the Father brings, as they maintain, truth, and perfection, and establishment, and deliverance from unstable matter, and reconciliation to the Father; but on their grandfather this same search entailed ignorance, and passion, and terror, and perplexity, from which [disturbances] they also declare that the substance of matter was formed.
To say, therefore, that the search after and investigation of the perfect Father, and the desire for communion and union with Him, were things quite beneficial to them, but to an Æon, from whom also they derive their origin, these things were the cause of dissolution and destruction, how can such assertions be otherwise viewed than as totally inconsistent, foolish, and irrational? Those, too, who listen to these teachers, truly blind themselves, while they possess blind guides, justly [are left to] fall along with them into the gulf of ignorance which lies below them.
Source: Adversus haereses (New Advent)