Rene Descartes — "I should know better than to believe that everything I perceive through my sense…"
I should know better than to believe that everything I perceive through my senses is true.
I should know better than to believe that everything I perceive through my senses is true.
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"I am a thinking substance, that is, a mind, or soul, or intellect, or reason."
"I have never made any discoveries that were not based on the certainty of mathematics."
"I have always held that the two questions, God and the Soul, were the chief of those which ought to be demonstrated by the help of philosophy rather than of theology."
"I think, therefore I am — this is the first and most certain conclusion that anyone who philosophizes in order should arrive at."
"I have always taken the greatest pleasure in mathematics."
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