Rene Descartes — "I think, therefore I am."
I think, therefore I am.
I think, therefore I am.
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"For the mind is not nourished by anything but truth."
"The existence of God is as evident as that of a triangle."
"The greatest good for man is to live according to reason."
"I think, therefore I am a doubt."
"I confess that I have never been able to find out what is the 'substantial form' of a human body, or how it differs from the form of a statue."
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