theologian. Little is known of his life except that c.1115 he entered St-Victor, a house of Augustinian Canons in Paris (see Victorines). He wrote on grammar, geometry, and philosophy; the Didascalion, which is a guide to the study of the artes and of theology; biblical commentaries; a commentary on Dionysius the Pseudo-Areopagite's Celestial Hierarchy; a treatise on the sacraments; and works on spirituality. In all these fields he made a distinctive contribution, with no parade of learning or claims to originality. He is notable for including the mechanical along with the liberal arts in his scheme of the divisions of knowledge.