René Descartes for Kids: Big Ideas Made Simple
Descartes tried to doubt everything he could, and found one thing he couldn't doubt: that he was thinking! If he's thinking, he must exist.
Main idea
Cartesian Doubt - Question everything to find what's certain
Famous quote
I think, therefore I am (Cogito, ergo sum)
Key concepts
- Cartesian Doubt
- Rationalism
- Mind-Body Dualism
How to use it today
When learning something, ask: How do I really know this is true?
Fun fact
Descartes created the Cartesian coordinate system (x, y graphs) used in math
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