Systems such as the bulk of those above described, drawing as they did on any documents rather than the Old and New Testaments, are obviously not so much Christian schisms as differentiations from historic Christianity--developments, in most cases, of an abstract Christism on lines not merely Gentile but based on Gentile religions, as against the Jewish. Broadly speaking, therefore, they tended to disappear from the Christist field, inasmuch as paganism had other deities better suited to the part of the Gnostic Logos. The intermediate type, bodiless at best, must die out. Gnosticism had not only no canon of its own, but no thought of one: while the fashion lasted every decade saw a new system, refining on the last and multiplying its abstractions, till the very term gnosis must have become a byword. Success, as has been said above, must remain with the simple and concrete system, especially if that were organized; and the Gnostics of the second century attempted no general organization. Yet Gnosticism left a lasting impress on Christianity. In its earlier stages, as we have seen, it modified the gospels; and after it had evolved away from the gospel basis it left an influence on the more philosophically-minded writers of the Church, notably Clement of Alexandria, who is as openly anxious to approve himself a "good Gnostic" as to found on the accepted sacred books of the Church. Deriving as it partly did from the Jewish Platonist Philo, it brought into the Church his fashion of reducing Biblical narratives to allegories--a course much resorted to not only by Origen but by Augustine, and very necessary for the defence of Hebrew tales against pagan criticism. Further, the regular practice of the Church in the matter of separating catechumens from initiates was an adoption of the Gnostic principle of esoteric knowledge.