I know not if I was then a man dreaming I was a butterfly, or if I am now a butterfly dreaming I am a man.

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A scholar utters thoughts based on fact and certainty, not on conjecture simply because he wants to be heard.

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One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.

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Your joy is your sorrow unmasked. And the self-same well from which your laughter rises was often-times filled with your tears.

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If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

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The reading of all good books is indeed like a conversation with the noblest men of past centuries who were the authors of them, nay a carefully studied conversation, in which they reveal to us none but the best of their thoughts.

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Good sense is of all things in the world the most equally distributed, for everybody thinks he is so well supplied with it, that even those most difficult to please in all other matters never desire more of it than they already possess.

quote by Descartes
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