The philosopher of the Neo-Platonic school, better known as one of the earliest and most learned antagonists of Christianity. Though a native either of Tyre or Batanea, he is called here, as also again in the Retractations, ii. 31, a Sicilian, because, according to Jerome and Eusebius (Hist. Eccles. vi. 19), it was in Sicily that he wrote his treatise in fifteen books against the Christian religion.—Tr.