Ammonius Saccas (early third century A.D.), Platonist philosopher who taught in Alexandria. He apparently served early in the century as the teacher of the Christian philosopher Origen. He attracted the attention of Plotinus, who came to the city in 232 in search of philosophical enlightenment (Porphyry, Life of Plotinus 3). Ammonius (the epithet ‘Saccas’ seems to mean ‘the bagman’) was undoubtedly a charismatic figure, but it is not at all clear what, if any, were his distinctive doctrines, though he seems to have been influenced by Numenius. He wrote nothing, and may be thought of, in E. R. Dodds’s words, as the Socrates of Neoplatonism. See also NEOPLA- TONIS. J.M.D.