Irenaeus also writes that Carpocrates was a contemporary of these men, and that he was the father of another heresy, called the heresy of the Gnostics, who did not wish to transmit any longer the magic arts of Simon, as that one had done, in secret, but openly. For they boasted -- as of something great -- of love potions that were carefully prepared by them, and of certain demons that sent them dreams and lent them their protection, and of other similar agencies; and in accordance with these things they taught that it was necessary for those who wished to enter fully into their mysteries, or rather into their abominations, to practice all the worst kinds of wickedness, on the ground that they could escape the cosmic powers, as they called them, in no other way than by discharging their obligations to them all by infamous-conduct. Thus it came to pass that the malignant demon, making use of these ministers, on the one hand enslaved those that were so pitiably led astray by them to their own destruction, while on the other hand he furnished to the unbelieving heathen abundant opportunities for slandering the divine word, inasmuch as the reputation of these men brought infamy upon the whole race of Christians. In this way, therefore, it came to pass that there was spread abroad in regard to us among the unbelievers of that age, the infamous and most absurd suspicion that we practiced unlawful commerce with mothers and sisters, and enjoyed impious feasts. He did not, however, long succeed in these artifices, as the truth established itself and in time shone with great brilliancy.