Rules for the Direction of the Mind ; Discourse on the Method : Meditations on First Philosophy ; Objections against the Meditations and Replies; the Geometry; Ethics : Vol. 31 - Hutchins, Robert Maynard; Descartes, Rene; Spinoza, Benedict De (Encyclopaedia Britannica, Inc. Chicago, 1952)
Keywords: Descartes - Rules and methods of meditation