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How can you be certain that your whole life is not a dream?
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
Musicologist
Philosopher
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La Haye en Touraine
Descartes
Cartesius
Renatus Cartesius
Certain
Whole
Life
Dream
More quotes by Rene Descartes
Mathematics is a more powerful instrument of knowledge than any other that has been bequeathed to us by human agency.
Rene Descartes
It is possible that I am dreaming right now and that all of my perceptions are false.
Rene Descartes
Reason is nothing without imagination.
Rene Descartes
A state is better governed which has few laws, and those laws strictly observed.
Rene Descartes
Nothing comes out of nothing.
Rene Descartes
Situations in life often permit no delay and when we cannot determine the course which is certainly best, we must follow the one which is probably the best. This frame of mind freed me also from the repentance and remorse commonly felt by those vacillating individuals who are always seeking as worthwhile things which they later judge to be bad.
Rene Descartes
I know that I exist the question is, What is this 'I' that 'I' know.
Rene Descartes
Conquer yourself rather than the world.
Rene Descartes
There is nothing more ancient than the truth.
Rene Descartes
I was convinced that our beliefs are based much more on custom and example than on any certain knowledge.
Rene Descartes
And thereby make ourselves, as it were, the lords and masters of nature.
Rene Descartes
We call infinite that thing whose limits we have not perceived, and so by that word we do not signify what we understand about a thing, but rather what we do not understand.
Rene Descartes
A person has two passions for love and abhorrence. A big disposition to excessiveness has just a love, because it is more ardent and stronger.
Rene Descartes
With me, everything turns into mathematics.
Rene Descartes
Thus each truth discovered was a rule available in the discovery of subsequent ones.
Rene Descartes
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.
Rene Descartes
I am accustomed to sleep and in my dreams to imagine the same things that lunatics imagine when awake.
Rene Descartes
Each problem that I solved became a rule, which served afterwards to solve other problems.
Rene Descartes
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
In order to improve the mind, we ought less to learn, than to contemplate.
Rene Descartes
