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Henri Poincare's Quotes

Henri Poincare profile photo

Born: 1970-01-01
Profession: Mathematician
Nation: French
Biography of Henri Poincare

See the gallery for quotes by Henri Poincare. You can to use those 7 images of quotes as a desktop wallpapers.
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No more than these machines need the mathematician know what he does.

Tags: Machines

Science is facts.

Tags: Facts, Science

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

Tags: Creativity, Experience, Mind

Thus, they are free to replace some objects by others so long as the relations remain unchanged.

Tags: Free, Others, Remain

To invent is to discern, to choose.

Tags: Choose, Discern, Invent

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

Tags: Feeling, Indeed, Solution

If we knew exactly the laws of nature and the situation of the universe at the initial moment, we could predict exactly the situation of the same universe at a succeeding moment.

Tags: Moment, Nature, Universe

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.

Tags: Great, Nature, Work

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.

Tags: Earth, Space, Whether

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.

Tags: Deep, Impossible, Problems

If that enabled us to predict the succeeding situation with the same approximation, that is all we require, and we should say that the phenomenon had been predicted, that it is governed by the laws.

Tags: Laws, Situation, Succeeding

It is the harmony of the diverse parts, their symmetry, their happy balance; in a word it is all that introduces order, all that gives unity, that permits us to see clearly and to comprehend at once both the ensemble and the details.

Tags: Happy, Once, Word

One would have to have completely forgotten the history of science so as to not remember that the desire to know nature has had the most constant and the happiest influence on the development of mathematics.

Tags: History, Nature, Science

The mathematical facts worthy of being studied are those which, by their analogy with other facts, are capable of leading us to the knowledge of a physical law.

Tags: Facts, Knowledge, Law

It is through science that we prove, but through intuition that we discover.

Tags: Intuition, Prove, Science

A sane mind should not be guilty of a logical fallacy, yet there are very fine minds incapable of following mathematical demonstrations.

Tags: Guilty, Mind, Minds

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

Tags: Human, Point, Race

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.

Tags: Facts, House, Science

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.

Tags: Beautiful, Nature, Study

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

Tags: Certainty, Far, Foresee

A very small cause which escapes our notice determines a considerable effect that we cannot fail to see, and then we say that the effect is due to chance.

Tags: Cannot, Chance, Small

A small error in the former will produce an enormous error in the latter.

Tags: Error, Former, Small

If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living.

Tags: Beautiful, Life, Nature
Much more quotes by Henri Poincare below the page.

Invention consists in avoiding the constructing of useless contraptions and in constructing the useful combinations which are in infinite minority.

Tags: Avoiding, Useful, Useless

Mathematicians are born, not made.

Tags: Born

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

Tags: Art, Giving, Name

Thought is only a flash between two long nights, but this flash is everything.

Tags: Between, Nights, Thought

To doubt everything, or, to believe everything, are two equally convenient solutions; both dispense with the necessity of reflection.

Tags: Both, Doubt, Reflection

Facts do not speak.

Tags: Facts, Speak

Geometry is not true, it is advantageous.

Tags: Geometry, True

How is an error possible in mathematics?

Tags: Error, Possible

Hypotheses are what we lack the least.

Tags: Hypotheses, Lack

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

Tags: Making, Speak, Until

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

Tags: Days, Mind, Old

It has adopted the geometry most advantageous to the species or, in other words, the most convenient.

Tags: Adopted, Geometry, Words

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

Tags: Facts, Houses, Science

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

Tags: Born, Great, Small

Mathematicians do not study objects, but relations between objects.

Tags: Between, Relations, Study

Need we add that mathematicians themselves are not infallible?

Tags: Add, Infallible, Themselves