Rene Descartes — "It is proper to a philosopher to doubt everything, at least once."
It is proper to a philosopher to doubt everything, at least once.
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"The greatest good is that which is most useful."
"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…"
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