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Henri Poincare Quotes

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Henri Poincare
April 29, 1854 - July 17, 1912
Nationality: French
Category: Mathematician
Subcategory: French Mathematician

The mind uses its faculty for creativity only when experience forces it to do so.


What is it indeed that gives us the feeling of elegance in a solution, in a demonstration?


Just as houses are made of stones, so is science made of facts.


Hypotheses are what we lack the least.


A scientist worthy of his name, about all a mathematician, experiences in his work the same impression as an artist; his pleasure is as great and of the same nature.


Mathematicians do not study objects, but relations between objects.


Science is built up of facts, as a house is with stones. But a collection of facts is no more a science than a heap of stones is a house.


Need we add that mathematicians themselves are not infallible?


Facts do not speak.


Mathematics is the art of giving the same name to different things.


The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful.


It is far better to foresee even without certainty than not to foresee at all.


Mathematical discoveries, small or great are never born of spontaneous generation.


Point set topology is a disease from which the human race will soon recover.


If one looks at the different problems of the integral calculus which arise naturally when one wishes to go deep into the different parts of physics, it is impossible not to be struck by the analogies existing.


In the old days when people invented a new function they had something useful in mind.


How is an error possible in mathematics?


Ideas rose in clouds; I felt them collide until pairs interlocked, so to speak, making a stable combination.


Absolute space, that is to say, the mark to which it would be necessary to refer the earth to know whether it really moves, has no objective existence.


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