Philo draws a distinction between magic in the good and bad sense. The former and true magical art is the lore of learned Persians called _Magi_ who investigate nature more minutely and deeply than is usual and explain divine virtues clearly.[1563] The latter magic is a spurious imitation of the other, practised by quacks and impostors, old-wives and slaves, who by means of incantations and the like procedure profess to change men from love to hatred or vice versa and who “deceive unsuspecting persons and waste whole families away by degrees and without making any noise.” It is to this adulterated and evil magic that Philo again refers when he likens political life to Joseph’s coat of many colors, stained with the blood of wars, and in which a very little truth is mixed up with a great deal of sophistry akin to that of the augurs, ventriloquists, sorcerers, jugglers and enchanters, “from whose treacherous arts it is very difficult to escape.”[1564] This distinction between a magic of the wise and of nature and that of vulgar impostors is one which we shall find in many subsequent writers, although it was not recognized by Pliny. Philo also antecedes numerous Christian commentators upon the Book of Numbers[1565] in considering the vexed question whether Balaam was an evil enchanter and diviner, or a divine prophet, or whether he combined magic and prophecy, and thus indicated that the former art is not evil but has divine approval. Philo’s conclusion is the more usual one that Balaam was a celebrated diviner and magician, and that it is impossible that “holy inspiration should be combined with magic,” but that in the particular case of his blessing Israel the spirit of divine prophecy took possession of him and “drove all his artificial system of cunning divination out of his soul.”[1566] [Sidenote: Stars not gods nor first causes.] Philo has considerably more to say upon the subject of astrology than upon that of magic. He was especially concerned to deny that the stars were first causes or independent gods. He chided the Chaldean adepts in genethlialogy for recognizing no other god than the universe and no other causes than those apparent to the senses, and for regarding fate and necessity as gods and the periodical revolutions of the heavenly bodies as the cause of all good and evil.[1567] Philo more than once exhorts the reader to follow Abraham’s example in leaving Chaldea and the science of genethlialogy and coming to Charran to a comprehension of the true nature of God.[1568] He agreed with Moses that the stars should not be worshiped and that they had been created by God, and more than that, not created until the fourth day, in order that it might be perfectly clear to men that they were not the primary causes of things.[1569] [Sidenote: But rational and virtuous animals: and God’s viceroys over inferiors.]