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Science is practical philosophy.

Rene Descartes

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Rene Descartes
Age: 53 †
Born: 1596
Born: March 31
Died: 1650
Died: February 11
Astronomer
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Mathematician
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La Haye en Touraine
Descartes
Cartesius
Renatus Cartesius
Practicals
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Philosophy
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More quotes by Rene Descartes

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The only thing we have power over in the universe is our own thoughts.
Rene Descartes
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We do not describe the world we see, we see the world we can describe.
Rene Descartes
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Thus each truth discovered was a rule available in the discovery of subsequent ones.
Rene Descartes
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The only secure knowledge is that I exist.
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He who hid well, lived well.
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The principal effect of the passions is that they incite and persuade the mind to will the events for which they prepared the body.
Rene Descartes
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Omnia apud me mathematica fiunt.
Rene Descartes
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Travelling is almost like talking with those of other centuries.
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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The greatest minds, as they are capable of the highest excellencies, are open likewise to the greatest aberrations and those who travel very slowly may yet make far greater progress, provided they keep always to the straight road, than those who, while they run, forsake it.
Rene Descartes
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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.
Rene Descartes
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Intuitive knowledge is an illumination of the soul, whereby it beholds in the light of God those things which it pleases Him to reveal to us by a direct impression of divine clearness.
Rene Descartes
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I know that I exist the question is, What is this 'I' that 'I' know.
Rene Descartes
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I should consider that I know nothing about physics if I were able to explain only how things might be, and were unable to demonstrate that they could not be otherwise.
Rene Descartes
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There is nothing more ancient than the truth.
Rene Descartes
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Common sense is the best distributed thing in the world, for we all think we possess a good share of it.
Rene Descartes
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Everything is self-evident.
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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Give me extension and motion and I will construct the universe.
Rene Descartes
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It's the familiar love-hate syndrome of seduction: I don't really care what it is I say, I care only that you like it.
Rene Descartes