Hippolytus of Rome, The Refutation of All Heresies IX.3: Noetianism an Offshoot from the Heraclitic Philosophy

But since we have exhibited the succession of their genealogy, it seems expedient next that we should also explain the depraved teaching involved in their doctrines. For this purpose we shall first adduce the opinions advanced by Heraclitus “the Obscure,” and we shall next make manifest what are the portions of these opinions that are of Heraclitean origin. Such parts of their system its present champions are not aware belong to the “Obscure” philosopher, but they imagine them to belong to Christ. But if they might happen to fall in with the following observations, perhaps they thus might be put out of countenance, and induced to desist from this godless blasphemy of theirs. Now, even though the opinion of Heraclitus has been expounded by us previously in the Philosophumena, it nevertheless seems expedient now also to set down side by side in contrast the two systems, in order that by this closer refutation they may be evidently instructed. I mean the followers of this (heretic), who imagine themselves to be disciples of Christ, when in reality they are not so, but of “the Obscure.”