Rene Descartes — "I think, therefore I am."
I think, therefore I am.
I think, therefore I am.
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"I suppose therefore that all the things I see are false; I believe that none of those things ever existed which my fallacious memory represents to me; I consider that I possess no senses; I imagine th…"
"The long chains of simple and easy reasonings by means of which geometers are accustomed to reach the conclusions of their most difficult demonstrations, had led me to imagine that all things, to the …"
"I have always taken the greatest pleasure in mathematics."
"I am accustomed to take my sleep for granted, and I often imagine that I dream of the most important things, when after all I am only dreaming."
"I am a thing that thinks, that doubts, that affirms, that denies, that wills, that refuses, that imagines also, and that perceives."
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