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

Quote by Henri Poincare

Topics: Henri Poincare Quotes

Geometry is not true, it is advantageous.

Geometry is not true, it is advantageous.

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...

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

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

To invent is to discern, to choose.

To invent is to discern, to choose.

Facts do not speak.

Facts do not speak.

Science is facts.

Science is facts.

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.

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...

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

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

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.

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...

Hypotheses are what we lack the least.

Hypotheses are what we lack the least.

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...

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...

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

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

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

A sane mind should not be guilty of a logical fallacy, yet there are very...

A sane mind should not be guilty of a logical fallacy, yet there are very...

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

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

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

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