Library Hippolytus Refutation of All Heresies
Book 10
Chapter 14: Tatian
Tatian, however, similarly with Valentinus and the others, says that there are certain invisible Aeons, and that by some one of these the world below has been created, and the things existing in it. And he habituates himself to a very cynical mode of life, and almost in nothing differs from Marcion, as appertaining both to his slanders, and the regulations enacted concerning marriage.
English translation by J.H. MacMahon, in Ante-Nicene Fathers, Vol. V (eds. Alexander Roberts and James Donaldson; Buffalo: Christian Literature Publishing Co., 1886). Public domain. Digital text via New Advent Church Fathers.