Principal Tulloch, in Encyc. Brit., 10:704—“All the Gnostics agree in regarding this world as not proceeding immediately from the Supreme Being.... The Supreme Being is regarded as wholly inconceivable and indescribable—as the unfathomable Abyss (Valentinus)—the Unnameable (Basilides). From this transcendent source existence springs by emanation in a series of spiritual powers.... The passage from the higher spiritual world to the lower material one is, on the one hand, apprehended as a mere continued degeneracy from the Source of Life, at length terminating in the kingdom of darkness and death—the bordering chaos surrounding the kingdom of light. On the other hand the passage is apprehended in a more precisely dualistic form, as a positive invasion of the kingdom of light by a self-existent kingdom of darkness. According as Gnosticism adopted one or other of these modes of explaining the existence of the present world, it fell into the two great divisions which, from their places of origin, have received the respective names of the Alexandrian and Syrian Gnosis. The one, as we have seen, presents more a Western, the other more an Eastern type of speculation. The dualistic element in the one case scarcely appears beneath the pantheistic, and bears resemblance to the Platonic notion of the ὕλη, a mere blank necessity, a limitless void. In the other case, the dualistic element is clear and prominent, corresponding to the Zarathustrian doctrine of an active principle of evil as well as of good—of a kingdom of Ahriman, as well as a kingdom of Ormuzd. In the Syrian Gnosis ... there appears from the first a hostile principle of evil in collision with the good.” We must remember that dualism is an attempt to substitute for the doctrine of absolute creation, a theory that matter and evil are due to something negative or positive outside of God. Dualism is a theory of origins, not of results. Keeping this in mind, we may call the Alexandrian Gnostics dualists, while we regard emanation as the characteristic teaching of the Syrian Gnostics. These latter made matter to be only an efflux from God and evil only a degenerate form of good. If the Syrians held the world to be independent of God, this independence was conceived of only as a later result or product, not as an original fact. Some like Saturninus and Bardesanes verged toward Manichæan doctrine; others like Tatian and Marcion toward Egyptian dualism; but all held to emanation as the philosophical explanation of what the Scriptures call creation. These remarks will serve as qualification and criticism of the opinions which we proceed to quote.