DAMASIUS, a celebrated Neo-platonic philosopher, who was born at Damaseus about the middle of the fifth century, A.D. He studied at Alexandria, and thence removed to Athens, where he taught philosophy till the close of the heathen schools during the reign of Justinian. Of his works, which consisted chiefly of commentaries on Plato and Aristotle, some fragments exist in the writings of Photius, who combats his indirect attacks on Christianity. His work entitled Difficulties and Solutions of the First Principles has been published by J. Kopp, Francf., 1828.