Nasir al-Din al-Tusi

Nasir al-Din al-Tusi (February 18, 1201 – June 26, 1274) was one of the
greatest scientists, mathematicians, astronomers, philosophers,
theologians, and physicians of his time

The Nasirean ethics Shii astronomer and theologian. Al-Tusi spent 12 years at the observatory and produced an accurate table of planetary movements. These tables remained popular among astronomers until the 1600's. Author of numerous works, including commentaries on Euclid, Al-Tusi was a productive writer. He wrote many formal books on a variety of subjects. He also wrote poetry.

Following the completion of his education, al-Tusi moved to an Isma'ili fort, which offered him protection from the Mongols who were invading the area around Tus.

The Nasirean Ethics is the best known ethical digest to be composed in medieval Persia

There he studied and wrote. He remained at various forts until 1256, when the Mongol Hulagu Khan ended the Isma'ili rule.

AḴLĀQ-E NĀṢERĪ. by Ḵᵛāǰa Naṣīr-al-dīn Ṭūsī, the principal treatise in Persian on ethics, to his eventual status as King of Philosophers by the end of his life.

He wrote “The organism that can gain the new features faster are more variable.