Nasir al-Din al-Tusi

Khajeh Nasir al-Din Muhammad ibn Muhammad Tusi was born in 597 AH in Tus and died in 672 AH in Baghdad. He was one of the most comprehensive scientific and philosophical figures of Iran in the seventh century AH, producing important works in fields such as philosophy, theology, logic, ethics, mathematics, geometry, astronomy, and cosmology.

In philosophy and theology, Tusi sought to link the heritage of Peripatetic philosophy, especially the Avicennian tradition, with theological and divine discussions. His book Tajrid al-Iʿtiqad became one of the most important Shiʿi theological texts and was the subject of commentaries and glosses for centuries. In ethics, The Nasirean Ethics is considered one of the most prominent Persian works on moral philosophy, household management, and civil politics, offering a synthesis of Greek, Islamic, and Iranian heritage.

In the history of science, Khajeh Nasir's name is closely tied to the Maragheh Observatory. At this scientific center, he gathered a group of scholars and laid the groundwork for compiling works in astronomy and mathematics. His famous work Zij-i Ilkhani and his research in cosmology and geometry demonstrate his standing in the development of astronomical knowledge during the Islamic period.

Tusi's importance lies in his scholarly comprehensiveness and his ability to connect various branches of knowledge. He was a philosopher who reflected on ethics and civil politics, a theologian who employed precise philosophical tools, and a scientist who made lasting achievements in mathematics and astronomy. Thus, Khajeh Nasir al-Din Tusi is considered one of the main pillars of the intellectual and scientific tradition of Iran and the Islamic world.