Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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.

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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.

Henri Poincare
Henri Poincare

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.

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

Geometry is not true, it is advantageous.

Henri Poincare
Henri Poincare

Mathematicians do not study objects, but relations between objects.

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

Mathematicians are born, not made.

Henri Poincare
Henri Poincare

To invent is to discern, to choose.

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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.

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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.

Henri Poincare
Henri Poincare

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

Henri Poincare
Henri Poincare

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.