List of Works by Nasir al-Din al-Tusi

Al-Tusi’s philosophical inquiry reaches its zenith in his influential work, “Tahafut al-Tahafut” (The Incoherence of the Incoherence), a response to the critique of Avicenna’s philosophy by Ghazali. In this treatise, he endeavors to harmonize rational philosophy with Islamic theology, articulating a nuanced defense of metaphysical principles such as existence, causality, and the nature of God. Al-Tusi’s arguments clarify the relationship between divine attributes and human reason, shedding light on the confluence of faith and intellect. His ability to reconcile divergent schools of thought reflects a masterful understanding of both Islamic orthodoxy and philosophical inquiry.

Astronomy and the Geocentric Paradigm

In the realm of astronomy, al-Tusi’s contributions are monumental. His magnum opus, the “Tusi Couple,” is a geometrical device that improved the Ptolemaic system’s accuracy in predicting planetary motions. This innovative model dispelled some of the inaccuracies inherent to the geocentric paradigm, demonstrating al-Tusi’s commitment to scientific rigor and precision. The incorporation of mathematics in his astronomical works illustrates the interdependence of science and theology, as understanding celestial mechanics plays a vital role in Islamic rituals, notably in determining prayer times and the lunar calendar.