Discourse on method and Meditations on first philosophy

Discourse on method

Meditations on first philosophy: Concerning those things that can be called into doubt; Concerning the nature of the human mind, that it is better known than the body; Concerning God, that he exists; Concerning the true and the false; Concerning the essence of material things, and again concerning God, that he exists; Concerning the existence of material things, and the real distinction between mind and body.