Al-Ghazali (UK: /lzli/, US: /lzli, -zl-/; full name , Ab mid Muammad ibn Muammad a-sy al-azly; latinized Algazelus or Algazel; c.1058 19 December 1111) was one of the most prominent and influential Muslim philosophers, theologians, jurists, and mystics of Sunni Islam. He was of Persian origin.
Some Muslims consider him to be a Mujaddid, a renewer of the faith who, according to the prophetic hadith, appears once every century to restore the faith of the ummah ("the Islamic Community"). His works were so highly acclaimed by his contemporaries that al-Ghazali was awarded the honorific title "Proof of Islam" (Hujjat al-Islm).
Al-Ghazali believed that the Islamic spiritual tradition had become moribund and that the spiritual sciences taught by the first generation of Muslims had been forgotten. That resulted in his writing his magnum opus entitled Iy ulm ad-dn ("The Revival of the Religious Sciences"). Among his other works, the Tahfut al-Falsifa ("Incoherence of the Philosophers") is a significant landmark in the history of philosophy, as it advances the critique of Aristotelian science developed later in 14th-century Europe.