A classic work of modern philosophy, "Discourse on the Method of Rightly Conducting the Reason and Seeking for Truth in the Sciences, " is renowned for being one of the first to apply the scientific method to the field. Descartes handles scepticism in philosophy by eradicating any preconceived ideas about reality and constructing from a foundation of truths he found to be indisputable. His later book, "Meditations on First Philosophy, " builds on his earlier work by employing his methodology to a philosophical analysis of God's existence and the soul's immortality. Descartes' work has been criticised for the philosophical conclusions it draws, yet his great effect ultimately stems from his insistence on questioning