A Discourse on Method: Radical Doubt, Reason, and the Search for Certainty

Discourse on the Method for Conducting One's Reason Well and Seeking Truth in Sciences

the Wisdom of René Descartes: Doubt, Certainty, and Architecture Reason

DISCOURSE ON THE METHOD OF RIGHTLY CONDUCTING REASON, AND SEEKING TRUTH IN SCIENCES

God: There is No Doubt!: Evidence, Certainty and the Search for God