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René Descartes · 1637 · 6 min read

Discourse on the Method

Four simple rules for thinking clearly, from the book that gave us “I think, therefore I am”.

Key idea 1

Good sense is spread evenly

Descartes opens by suggesting that people are roughly equal in their capacity to reason. What separates good and bad thinkers isn’t raw ability but how they direct their minds: the method they follow.

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