Rene Descartes — "I think, therefore I am, is the first and most certain truth that occurs to anyo…"
I think, therefore I am, is the first and most certain truth that occurs to anyone who philosophizes in an orderly way.
I think, therefore I am, is the first and most certain truth that occurs to anyone who philosophizes in an orderly way.
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"I shall proceed by setting aside all that in which I can suppose there to be the slightest doubt, just as if I had discovered that it was wholly false."
"The two operations of our understanding, intuition and deduction, on which alone we have said we must rely in the acquisition of knowledge."
"The mind is a substance whose whole essence or nature consists only of thinking."
"It is a mark of a truly great mind to be able to make a great discovery with few means."
"It is not enough to have a good mind; the main thing is to use it well."
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