[216] Octav. 34.
[217] Apol. 47.
[218] Strom. 2. 1.
[219] Origen, c. Cels. 3. 16.
[220] Origen, c. Cels. 5. 65; 6. 1, 7, 15, 19: see also the references in Keim, p. 77.
[221] Ibid. 7. 58. So Minucius Felix, in Keim, p. 157.
[222] The above slight sketch of some of the leading tendencies which have been loosely grouped together under the name of Gnosticism has been left unelaborated, because a fuller account, with the distinctions which must necessarily be noted, would lead us too far from the main track of the Lecture: some of the tendencies will re-appear in detail in subsequent Lectures, and students will no doubt refer to the brilliant exposition of Gnosticism in Harnack, Dogmengeschichte, i. pp. 186-226, ed. 2.
[223] Strom. 1. 1: almost the whole of the first book is valuable as a vindication of the place of culture in Christianity.
[224] Adv. Prax. 3.
[225] Quoted by Euseb. H. E. 5. 28. 13.