When first published in 1637, it prefaced the essays Dioptrics, Meteorology, and Geometry.  
This was one of the first modern philosophical works not written in Latin and the author claimed this was to allow even women to learn to use their reason.  When first published in 1637, it prefaced the essays Dioptrics, Meteorology, and Geometry.  Beginning with the assertion that "Good sense is the most evenly distributed thing in the world," this six-part work discusses the author's use of rigorous mathematical proofs in philosophy and discusses the four means by which one might "rightly conduct the reason."  FTP, identify this work in which Ren?Descartes first outlined his philosophical system of induction and logic.
This was one of the first modern philosophical works not written in Latin and the author claimed this was to allow even women to learn to use their reason.  
Discourse on the Method of Rightly Conducting the Reason, and Seeking Truth in the Sciences or Discours de la methode