"Discours de la méthode" by René Descartes is a philosophical text published in 1637. Originally intended as an introduction to three scientific treatises, this work presents Descartes's method for pursuing truth through reason. Written after Galileo's condemnation and published anonymously, it combines autobiography with philosophical inquiry, outlining the author's intellectual journey and methodological principles. The text became one of the founding works of modern Western philosophy, demonstrating how Descartes's approach extends across metaphysics, physics, and medicine.