Descartes' Meditations on First Philosophy

The French philosopher Descartes is often called the "Father" of modern philosophy in the West. His Discourse on Method presents the reason why: his method of inquiry. He was the quintessential "rationalist," subjecting all sense experience as doubtful and untrustworthy. Rather than relying on external authority (whether from other people or from God), Descartes demands nothing less than absolute certainty that begins with the self and proceeds step by step with the rigor of logical and mathematical precision. Even though he claims that he has proved the existence of God and explained God's nature, even that core tenet must be established through rigorous logical argument. No subsequent philosopher is able to ignore this bold and challenging foundation for all thinking. Those who become his disciples as well as those who reject his way of thinking are all under his spell. Many think they have broken that spell only to find that he has shaped them in ways that are not easy to escape.