Fakhr al-Dīn al-Rāzī or Fakhruddin Razi;
(Persian: فخر الدين رازي) was a Sunni Muslim theologian and philosopher from Khorasan. He was born in 1149 in Rey (in modern-day Iran), and died in 1209 in Herat (in modern-day Afghanistan). He also wrote on medicine, physics, astronomy, literature, history and law.
He left a very rich corpus of philosophical and theological works that reveals influence from the works of Ibn Sīnā, Abu’l-Barakāt al-Baghdādī and al-Ghazali. Two of his works titled Mabāhith al-mashriqiyya fī ‘ilm al-ilāhiyyāt wa-‘l-tabi‘iyyāt (Eastern Studies in Metaphysics and Physics) and al-Matālib al-‘Aliya (The Higher Issues) are usually regarded as his most important philosophical works.