A man who claimed that this philosopher "is not interested in madness" is criticized in an essay by Jacques Derrida, who titled that essay for a concept this thinker created. 
A man who claimed that this philosopher "is not interested in madness" is criticized in an essay by Jacques Derrida, who titled that essay for a concept this thinker created. Antoine Arnauld pointed out a circular argument in this philosopher's discussion of clear and distinct perceptions. This author attempts to consider all external things as traps created by an evil, deceiving demon. This philosopher's most famous text sets out to demolish his false opinions, like the idea that knowledge comes from the senses. For 10 points name this author of the Meditations on First Philosophy and Discourse on Method who wrote "cogito ergo sum".