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.

Quote by Henri Poincare

Topics: Henri Poincare Quotes

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

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

Science is built up of facts, as a house is with stones. But a collection...

Science is built up of facts, as a house is with stones. But a collection...

To invent is to discern, to choose.

To invent is to discern, to choose.

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

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

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

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

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

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

Hypotheses are what we lack the least.

Hypotheses are what we lack the least.

It is the harmony of the diverse parts, their symmetry, their happy balance; in a...

It is the harmony of the diverse parts, their symmetry, their happy balance; in a...

A very small cause which escapes our notice determines a considerable effect that we cannot...

A very small cause which escapes our notice determines a considerable effect that we cannot...

No more than these machines need the mathematician know what he does.

No more than these machines need the mathematician know what he does.

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

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

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

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

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

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

If we knew exactly the laws of nature and the situation of the universe at...

If we knew exactly the laws of nature and the situation of the universe at...

Science is facts.

Science is facts.

The mathematical facts worthy of being studied are those which, by their analogy with other...

The mathematical facts worthy of being studied are those which, by their analogy with other...

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

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

One would have to have completely forgotten the history of science so as to not...

One would have to have completely forgotten the history of science so as to not...

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

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

If one looks at the different problems of the integral calculus which arise naturally when...

If one looks at the different problems of the integral calculus which arise naturally when...