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

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This result could have been achieved either by his [God] endowing my intellect with a clear and distinct perception of everything about which I would ever deliberate, or simply by impressing the following rule so firmly upon my memory that I could never forget it: I should never judge anything that I do not clearly and distinctly understand.
Rene Descartes
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Give me extension and motion and I will construct the universe.
Rene Descartes
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We never understand a thing so well,and make it our own, as when we have discovered it for ourselves.
Rene Descartes
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There is a difference between happiness, the supreme good, and the final end or goal toward which our actions ought to tend. For happiness is not the supreme good, but presupposes it, being the contentment or satisfaction of the mind which results from possessing it.
Rene Descartes
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Variant: When it is not in our power to follow what is true, we ought to follow what is most probable.
Rene Descartes
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If I go for the alternative which is false, then obviously I shall be in error if I take the other side, then it is by... chance that I arrive at the truth, and I shall still be at fault.... In this incorrect use of free will may be found the privation which constitutes the essence of error.
Rene Descartes
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For how do we know that the thoughts which occur in dreaming are false rather than those others which we experience when awake, since the former are often not less vivid and distinct than the latter?
Rene Descartes
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Here I beg you to observe in passing that the scruples that prevented ancient writers from using arithmetical terms in geometry, and which can only be a consequence of their inability to perceive clearly the relation between these two subjects, introduced much obscurity and confusion into their explanations.
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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God alone is the author of all the motions in the world.
Rene Descartes
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With me, everything turns into mathematics.
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
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Everything is self-evident.
Rene Descartes
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When I consider this carefully, I find not a single property which with certainty separates the waking state from the dream. How can you be certain that your whole life is not a dream?
Rene Descartes
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And I shall always hold myself more obliged to those by whose favour I enjoy uninterrupted leisure than to any who might offer me the most honourable positions in the world.
Rene Descartes
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On the one hand I have a clear and distinct idea of myself, in so far as I am a thinking, non-extended thing and on the other hand I have a distinct idea of body, in so far a this is simply an extended, non-thinking thing. And, accordingly, it is certain that I am really distinct from my body, and exist without it.
Rene Descartes
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How do we know that anything really exists, that anything is really the way it seems ot us through our senses?
Rene Descartes
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Sensations are nothing but confused modes of thinking.
Rene Descartes
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Even those who have the weakest souls could acquire absolute mastery over all their passions if we employed sufficient ingenuity in training and guiding them.
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