TheInspired Sage
Ancient Greek theatre in Delos, Greece
History & Philosophy✓ Verified source
“
In order to seek truth, it is necessary once in the course of our life, to doubt, as far as possible, of all things.
René Descartes
— René Descartes
Philosopher
Principles of Philosophy (1644)

About this quote

Attributed to
René Descartes
Source
Principles of Philosophy (1644)
Culture / tradition
French
Attribution status
✓ Verified source
Verification
Primary reference

Photo: Bernard Gagnon · CC BY-SA 3.0 · source · Portrait: After Frans Hals (1582/1583–1666) (Public domain)

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“In order to seek truth, it is necessary once in the course of our life, to doubt, as far as possible, of all t…” — René Descartes · The Inspired Sage