Philosophy as well as science was not unfavorable to some varieties of magic. Neo-Platonism, the most prominent school of philosophy in the Empire, probably led men on to belief in magic more than any previous classical system. Nature was looked upon as real only in so far as it was soul, and its processes were regarded as the expression of the world-soul’s mysterious working. The investigation of nature thus tended to become an inquiry concerning spirits and demons, a study into the strange and subtle relations existing between things united, as all things are, by bonds of spiritual sympathy. True, the earlier Alexandrines are said to have condemned magic arts,[156] but we have seen that such condemnation need not amount to much. Plotinus attacked only the most extreme pretensions of astrology, and was ready to grant that the stars were celestial characters and signs of the future. He even conceded that prediction might be made from birds. But to him astrology and augury seemed of comparatively small importance, for he believed everything to be joined to and dependent upon every other thing and that in any object the wise man might see signs of everything else.[157] Succeeding Neo-Platonists, at any rate, were often devoted to magic. The name of Iamblichus, for instance, is one of the most prominent in the field of the occult. Moreover, in the time of the Empire a tendency was noticeable to confuse philosophy with magic. If this tendency was not justifiable, it is at least suggestive. Dio Cassius, in the passage above quoted, represents Mæcenas as saying that not a few of those who pretend to be philosophers practice magic.[158] Apuleius, accused of magic, stated in his _Apologia_ that he was undertaking not only his own defense but that of philosophy.[159] The accusation against him also suggests similar charges brought against mediæval men of learning during their lives or reputations which they won after death. Apuleius, having married a rich widow older than himself, was charged by some sycophant, jealous rival or other personal enemy with having obtained her affections by use of sorcery. Apuleius seems to have studied medicine, if no other branch of physical science, for he asserts that certain verses laid to his charge by the accuser deal with nothing more harmful than a recipe for making tooth-powder, and that a woman whom he was said to have bewitched had merely fallen into an epileptic fit while consulting him concerning an ear-ache.[160] This might be taken to show that the pursuit of science was already liable to give one a bad reputation as a wizard; but it should be said that the love-verses of Apuleius, as well as his poetical prescriptions, were used to support the accusation, and that the purchase of fish was also brought forward as a suspicious circumstance. Apuleius affirms in his oration that “philosophers” have always been subjected to such charges. He says, however, that the investigators of