GHAZALI or ALGAZEL [Mohammed ibn Mohammed Abu Hamid al-Ghazali] (1o58-1111), Arabian philosopher and theologian, was born at Tus, and was educated in his native town, in Jorjan and in Nishapur. In 1091 the celebrated vizier Nizam ul-Mulk appointed him professor in his college at Baghdad. Here he was engaged in writing against the Isma`ilites (Assassins), but after four years he suddenly gave up his chair, left his family and devoted himself to an ascetic life. This was due to a growing scepticism, which gradually gave way to mysticism, and to his attack on philosophers. Some of their problems which he declared insoluble were the eternity of the world, the reality of the Divine attributes, God's knowledge of things outside of Himself and the independence and immortality of the soul. Ghazali wandered through Damascus, Jerusalem, Hebron, Mecca, Medina and Alexandria until, at the wish of the sultan Malik Shah, he became professor in the college of Nizam ul-Mulk at Nishapur. He re turned soon after to Tas, where he died in Dec. 'III.
For Ghazali's life see McG. de Slane's translation of Ibn Khallikan, ii. if. ; R. Gosche's Ober Ghazali's Leben and Werke (1859) ; D. B. Macdonald's "Life of al-Ghazali," in Journal of American Oriental Society (1899) , Carra de Vaux's Gazali (1902) and bibliography in L)berweg's Gesch. der Philosophie (Bd. 2, 1928) ; see ARABIAN PHIL OSOPHY.