The tutor to Alexander the Great was none other than the celebrated philosopher Aristotle, who was also a student of Plato and a mentor to many renowned ancient Greek thinkers. Aristotle tutored Alexander for several years, starting from the age of 13 and imparted him with a broad range of knowledge and skills, including philosophy, politics, ethics, and science, among others. Under the tutelage of Aristotle, Alexander developed his intellectual abilities and his leadership qualities, which eventually helped him become one of the greatest military leaders in history.