Comparing Averroes' and Hegel's positions on the relation between philosophy and religion, this book explores the theme of the authorities of faith and reason, and the origin of truth, in a medieval Islamic and a modern Christian context respectively. Through an in-depth analysis of Averroes' and Hegel's parallel views on the nature of philosophical and religious discourse, Belo presents new insights into their perspectives on the relation between philosophical knowledge and religious knowledge, and the differences between philosophy and religion. In addition, Belo explores particular works which have not yet been studied by modern scholarship.