Rene Descartes Quotes
I know that I exist; the question is, What is this 'I' that 'I' know.
Citations
Descartes, René. Discourse on Method and Meditations on First Philosophy. Translated by Donald A. Cress, 4th ed., Hackett Publishing, 1998, p. 65.
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René Descartes was a French-born philosopher, mathematician, and scientist who spent a large portion of his working life in the Dutch Republic, initially serving the Dutch States Army of Maurice of Nassau, Prince of Orange and the Stadtholder of the United Provinces. One of the most notable intellectual figures of the Dutch Golden Age, Descartes is also widely regarded as one of the founders of modern philosophy.