Tamhid al-usul by Shaykh al-Tusi

II. Structure and Central Themes

“Tamhid al-usul” is meticulously structured, beginning with foundational principles of belief. Shaykh al-Tusi embarks on an exploration of the nature of God, emphasizing attributes such as omniscience, omnipotence, and benevolence. These discussions lay the groundwork for comprehending the relationship between God and humanity, a theme that is intricately woven throughout the narrative.

He deftly navigates the philosophical realms, engaging with the doctrines of both external and internal proofs of faith. The dialectical engagement with adversarial theological perspectives serves to sharpen his arguments, presenting nuanced responses that reflect the sophistication of Islamic rational thought. This aspect of the text invites readers to rethink their assumptions about the nature of belief and doubt, thereby promising a transformative intellectual journey.