For centuries, the works of Aristotle and other Greek thinkers were preserved in the Arabic world, where they profoundly influenced Muslim thinkers who were trying to combine philosophical insight with religious piety. The intellectual range of this great tradition is remarkable: nothing escaped investigation, from details of medicine to the mysteries of God's nature. Avicenna and Averroes produced philosophical systems that rival the greatest intellectual structures ever built. The World of Philosophy series is a dramatic presentation, in understandable language, of the concerns, questions, interests, and overall outlook of the world's great philosophers and philosophical traditions. Special emphasis on clear and relevant explanations gives you a new arsenal of insights toward living a better life.