French Philosopher René Descartes, the man behind the saying "I think, therefore I am," was born March 31, 1596 in France.
Philosopher Rene Descartes
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Key Facts In This Video
Descartes' mission in "Meditations" was to doubt everything. 00:29
Descartes circulated copies of his work and asked for critiques. 03:41
Written By Curiosity Staff March 31, 2015
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