In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things
RENE DESCARTESBut what then am I? A thing that thinks. What is that? A thing that doubts, understand, affirms, denies, wills, refuses, and that also imagines and senses.
More Rene Descartes Quotes
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When I turn my mind’s eye upon myself, I understand that I am a thing which is incomplete and dependent on another and which aspires without limit to ever greater and better things…
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Let whoever can do so deceive me, he will never bring it about that I am nothing, so long as I continue to think I am something.
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The greatest minds are capable of the greatest vices as well as of the greatest virtues.
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I desire to live in peace and to continue the life I have begun under the motto ‘to live well you must live unseen’.
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The first precept was never to accept a thing as true until I knew it as such without a single doubt
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It is a common failing of mortals to deem the more difficult the fairer.
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So far, I have been a spectator in this theatre which is the world, but I am now about to mount the stage, and I come forward masked.
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Truths are more likely to have been discovered by one man than by nation
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Each problem that I solved became a rule which served afterwards to solve other problems.
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I suppose therefore that all things I see are illusions; I believe that nothing has ever existed of everything my lying memory tells me.
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Bad books engender bad habits, but bad habits engender good books.
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I took especially great pleasure in mathematics because of the certainty and the evidence of its arguments.
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It is not enough to have a good mind; the main thing is to use it well.
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Divide each difficulty into as many parts as is feasible and necessary to resolve it.
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Mind and soul of the man is entirely different from the body.
RENE DESCARTES






