On Valentinus, see chap. 11, note 1. That Tatian was Gnostic in many of his tendencies is plain enough not only from these words of Irenæus, but also from the notices of him in other writers (cf. especially Hippolytus, Phil. VIII. 9). To what extent he carried his Gnosticism, however, and exactly in what it consisted, we cannot tell. He can hardly have been a pronounced follower of Valentinus and a zealous defender of the doctrine of Æons, or we should find him connected more prominently with that school. He was, in fact, a decided eclectic, and a follower of no one school, and doubtless this subject, like many others, occupied but a subordinate place in his speculations.