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The Discourse on Method

work by Descartes
Also known as: “Discours de la méthode”

Quick Summary

The Discourse on Method (1637) by René Descartes was a groundbreaking philosophical work written in French, making it accessible beyond Latin-speaking scholars. Descartes advocated for using natural reason to discover truth, believing everyone possessed this capacity.

The work is accompanied by scientific essays, including one on analytic geometry, where Descartes introduced algebraic notation still used today. He also proposed a provisional moral code emphasizing obedience to customs, decisive action, controlling desires, and seeking truth. Descartes viewed knowledge as interconnected, like a tree with metaphysics as roots and sciences as branches.1

A central concept introduced in The Discourse is the dictum "Cogito, ergo sum" ("I think, therefore I am"), which Descartes used as a foundational certainty after applying methodic doubt to all other beliefs. This established his dualistic view of mind and matter.2345

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