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

Henri Poincare

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Henri Poincare
Age: 58 †
Born: 1854
Born: April 29
Died: 1912
Died: July 17
Astronomer
Engineer
Mathematician
Philosopher
Philosopher Of Science
Physicist
Researcher
Topologist
University Teacher
Le Cateau
Jules Henri Poincaré
Poincaré
Henri Poincare
Jules Henri Poincare
Poincare
Houses
Stones
Science
House
Facts
Made

More quotes by Henri Poincare

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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.
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One geometry cannot be more true than another it can only be more convenient.
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What is it indeed that gives us the feeling of elegance in a solution, in a demonstration?
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Zero is the number of objects that satisfy a condition that is never satisfied. But as never means in no case, I do not see that any progress has been made.
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Mathematicians are born, not made.
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Ideas rose in clouds I felt them collide until pairs interlocked, so to speak, making a stable combination.
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Mathematics has a threefold purpose. It must provide an instrument for the study of nature. But this is not all: it has a philosophical purpose, and, I daresay, an aesthetic purpose.
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How is error possible in mathematics?
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All of mathematics is a tale about groups.
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Every good mathematician should also be a good chess player and vice versa.
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If we wish to foresee the future of mathematics, our proper course is to study the history and present condition of the science.
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Later generations will regard Mengenlehre (set theory) as a disease from which one has recovered.
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Point set topology is a disease from which the human race will soon recover.
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It may happen that small differences in the initial conditions produce very great ones in the final phenomena.
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Experiment is the sole source of truth. It alone can teach us something new it alone can give us certainty.
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How is it that there are so many minds that are incapable of understanding mathematics? ... the skeleton of our understanding, ... and actually they are the majority. ... We have here a problem that is not easy of solution, but yet must engage the attention of all who wish to devote themselves to education.
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I entered an omnibus to go to some place or other. At that moment when I put my foot on the step the idea came to me, without anything in my former thoughts seeming to have paved the way for it, that the transformations I had used to define the Fuchsian functions were identical with non-Euclidean geometry.
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In the old days when people invented a new function they had something useful in mind.
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Thought is only a flash between two long nights, but this flash is everything.
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Mathematicians do not study objects, but the relations between objects.
Henri Poincare