"Le Discours de la Méthode" (in English, "Discourse on the Method") is a philosophical work written by the French philosopher and mathematician René Descartes. This work is considered one of the most influential and foundational texts in the history of Western philosophy. Descartes wrote the "Discourse on the Method" in 1637, and it serves as an introduction to his more comprehensive works, including "Meditations on First Philosophy." The "Discourse" presents Descartes' method of critical thinking and skepticism, which he famously expressed in the statement "Cogito, ergo sum" or "I think, therefore I am." This work is a key contribution to the development of modern philosophy and the Enlightenment. In the "Discourse," Descartes outlines his approach to acquiring knowledge based on reason and doubt, which had a profound impact on the future of philosophy and science.