SEXTUS EMPIRICUS (2nd1and 3rd centuries A.D.)  , physician and philosopher, lived at

Alexandria and at Athens . In his medical work he belonged to the " methodical " school (see ASCLEPIADES), as a philosopher, he is the greatest of the later Greek Sceptics . His claim to eminence rests on the facts that he developed and formulated the doctrines of the older Sceptics, and that he handed down a full and, on the whole, an impartial account of the members of his school . His works are two, the Pyrrhonian Hypotyposes and Against the Mathematici (ed . Fabricius, Paris, 1621, and Bekker, Berlin, 1842) . See Brochard, Les Sceptiques grecs (1887); Pappenheim, Lebensverhdltnisse des Sextus Empiricus (Berlin, 1875); Jourdain, Sextus Empiricus (Paris, 1858) ; Patrick, Sextus Empiricus and the Greek Sceptics (1899, with trans. of Pyrrh . Hyp. i.); also SCEPTI- cISM .