Discourse on Method, Meditations of First Philosophy and Principles of Philosophy

The Discourse on the Method (French: Discours de la m�thode) is a philosophical and autobiographical treatise published by Ren� Descartes in 1637. Its full name is Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences (French title: Discours de la m�thode pour bien conduire sa raison, et chercher la v�rit� dans les sciences).Meditations on First Philosophy (subtitled In which the existence of God and the immortality of the soul are demonstrated) is a philosophical treatise by Ren� Descartes which was first published in 1641 (in Latin). The original Latin title is Meditationes de prima philosophia, in qua Dei existentia et anim� immortalitas demonstratur.Principles of Philosophy (Latin: Principia philosophiae) is a book by Ren� Descartes. In essence it is a synthesis of the Discourse on Method and Meditations on First Philosophy.