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Perfect numbers like perfect men are very rare.

Rene Descartes

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Rene Descartes
Age: 53 †
Born: 1596
Born: March 31
Died: 1650
Died: February 11
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More quotes by Rene Descartes

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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.
Rene Descartes
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...it is certain that I am really distinct from my body, and can exist without it.
Rene Descartes
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If I simply refrain from making a judgment in cases where I do not perceive the truth with sufficient clarity and distinctness, then it is clear that I am behaving correctly and avoiding error.
Rene Descartes
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Divide each difficulty at hand into as many pieces as possible and as could be required to better solve them.
Rene Descartes
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Whenever anyone has offended me, I try to raise my soul so high that the offense cannot reach it.
Rene Descartes
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God alone is the author of all the motions in the world.
Rene Descartes
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How can you be certain that your whole life is not a dream?
Rene Descartes
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I am thing that thinks: that is, a things that doubts,affirms, denies, understands a few things, is ignorant of many things, is willing, is unwilling, and also which imagines and has sensory perceptions.
Rene Descartes
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... moral certainty is certainty which is sufficient to regulate our behaviour, or which measures up to the certainty we have on matters relating to the conduct of life which we never normally doubt, though we know that it is possible, absolutely speaking, that they may be false.
Rene Descartes
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Even if I were to suppose that I was dreaming and whatever I saw or imagined was false, yet I could not deny that ideas were truly in my mind.
Rene Descartes
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Hence reason also demands that, since our thoughts cannot all be true because we are not wholly perfect, what truth they do possess must inevitably be found in the thoughts we have when awake, rather than in our dreams.
Rene Descartes
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It is to the body alone that we should attribute everything that can be observed in us to oppose our reason.
Rene Descartes
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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. I think I have no senses. I believe that body, shape, extension, motion, location are functions. What is there then that can be taken as true? Perhaps only this one thing, that nothing at all is certain.
Rene Descartes
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I accept no principles of physics which are not also accepted in mathematics.
Rene Descartes
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Instead I ought to be grateful to Him who never owed me anything for having been so generous to me, rather than think that He deprived me of those things or has taken away from me whatever He did not give me.
Rene Descartes
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Sensations are nothing but confused modes of thinking.
Rene Descartes
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And thereby make ourselves, as it were, the lords and masters of nature.
Rene Descartes
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I was convinced that our beliefs are based much more on custom and example than on any certain knowledge.
Rene Descartes
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Nothing comes out of nothing.
Rene Descartes
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In the matter of a difficult question it is more likely that the truth should have been discovered by the few than by the many.
Rene Descartes