In this final period of Greek philosophy, the first to whom we must turn is Philo the Jew, who lived in the time of the Emperor Caligula. In harmony with the ideas of his nation, he derives all philosophy and useful knowledge from the Mosaic record, not hesitating to wrest Scripture to his use by various allegorical interpretations, asserting that man has fallen from his primitive wisdom and purity; that physical inquiry is of very little avail, but that an innocent life and a burning faith are what we must trust to. He persuaded himself that a certain inspiration fell upon him while he was in the act of writing, somewhat like that of the penmen of the Holy Scriptures. His readers may, however, be disposed to believe that herein he was self-deceived, judging both from the character of his composition and the nature of his doctrine. As respects the former, he writes feebly, is vacillating in his views, and, when watched in his treatment of a difficult point, is seen to be wavering and unsteady. As respects the latter, among other extraordinary things he teaches that the world is the chief angel or first son of God; he combines all the powers of God into one force, the Logos or holy Word, the highest powers being creative wisdom and governing mercy. From this are emitted all the mundane forces; and, since God cannot do evil, the existence of evil in the world must be imputed to these emanating forces. It is very clear, therefore, that though Philo declined Oriental pantheism, he laid his foundation on the Oriental theory of Emanation. [Sidenote: Apollonius of Tyana.] [Sidenote: Is a miracle-worker and prophet.] As aiding very greatly in the popular introduction of Orientalism, Apollonius of Tyana must be mentioned. Under the auspices of the Empress Julia Domna, in a biographical composition, Philostratus had the audacity to institute a parallel between this man and our Saviour. He was a miracle-worker, given to soothsaying and prophesying, led the life of an ascetic, his raiment and food being of the poorest. He attempted a reformation of religious rites and morals; denied the efficacy of sacrifice, substituting for it a simple worship and a pure prayer, scarce even needing words. He condemned the poets for propagating immoral fables of the gods, since they had thereby brought impurity into religion. He maintained the doctrine of transmigration. [Sidenote: Plutarch leans to patronizing Orientalism.] [Sidenote: Numenius inclines to a trinitarian philosophy.]