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The meaning and origin of the expression: Cogito, ergo sum

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Cogito, ergo sum

What's the meaning of the phrase 'Cogito ergo sum'?


Usually translated from the Latin as 'I think, therefore I am'.

What's the origin of the phrase 'Cogito ergo sum'?

Cogito, ergo sumPossibly the best known of all philosophical quotations; this is from the French philosopher René Descartes in Discourse on Method, 1637, where he attempted to prove his existence as a thinking being, by thinking. 'I think, therefore I am' comes to us in English via two translations.

Descartes' original statement in French was "Je pense, donc je suis".

This is such a well-known line that it has spawned humorous alternatives, not least:

"I'm pink, therefore I'm spam"
"René Descartes was a drunken fart - I drink therefore I am".

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