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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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Rene Descartes
Age: 53 †
Born: 1596
Born: March 31
Died: 1650
Died: February 11
Astronomer
Correspondent
Mathematician
Mechanical Automaton Engineer
Military Personnel
Music Theorist
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La Haye en Touraine
Descartes
Cartesius
Renatus Cartesius
Possible
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Divide
Better
Divides
Many
Required
Solve
Difficulty
Pieces
Hand

More quotes by Rene Descartes

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The nature of matter, or body considered in general, consists not in its being something which is hard or heavy or coloured, or which affects the senses in any way, but simply in its being something which is extended in length, breadth and depth.
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I know that I exist the question is, What is this 'I' that 'I' know.
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Thus each truth discovered was a rule available in the discovery of subsequent ones.
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The chief cause of human errors is to be found in the prejudices picked up in childhood.
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Wonder is the first of all the passions.
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The rainbow is such a remarkable phenomenon of nature, and its cause has been so meticulously sought after by inquiring minds throughout the ages, that I could not choose a more appropriate subject for demonstrating how, with the method I am using, we can arrive at knowledge not possessed at all by those whose writings are available to us.
Rene Descartes
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The two operations of our understanding, intuition and deduction, on which alone we have said we must rely in the acquisition of knowledge.
Rene Descartes
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[About Pierre de Fermat] It cannot be denied that he has had many exceptional ideas, and that he is a highly intelligent man. For my part, however, I have always been taught to take a broad overview of things, in order to be able to deduce from them general rules, which might be applicable elsewhere.
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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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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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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The only secure knowledge is that I exist.
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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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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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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Science is practical philosophy.
Rene Descartes
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I experienced in myself a certain capacity for judging which I have doubtless received from God, like all the other things that I possess and as He could not desire to deceive me, it is clear that He has not given me a faculty that will lead me to err if I use it aright.
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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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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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