"A Discourse on the Method for Properly Conducting One’s Reason and Seeking Truth in the Sciences" is René Descartes’s most famous work, in which he formulates a rational method for scientific inquiry. Descartes offers the reader an opportunity to become acquainted with the way of reasoning that allowed him to penetrate the essence of things and phenomena and reach reliable conclusions. The collection also includes: "The Search for Truth by Means of Natural Light"; "Meditations on First Philosophy, in which the Existence of God and the Distinction Between the Human Soul and Body are Proved"; "Principles of Philosophy".