Invention consists in avoiding the constructing of useless contraptions and in constructing the useful combinations which are in infinite minority.
Quote by Henri Poincare
Henri Poincare Quotes
If nature were not beautiful, it would not be worth knowing, and if nature were...
Facts do not speak.
No more than these machines need the mathematician know what he does.
To doubt everything, or, to believe everything, are two equally convenient solutions; both dispense with...
Thus, they are free to replace some objects by others so long as the relations...
To invent is to discern, to choose.
Thought is only a flash between two long nights, but this flash is everything.
A scientist worthy of his name, about all a mathematician, experiences in his work the...
Absolute space, that is to say, the mark to which it would be necessary to...
What is it indeed that gives us the feeling of elegance in a solution, in...
Point set topology is a disease from which the human race will soon recover.
How is an error possible in mathematics?
One would have to have completely forgotten the history of science so as to not...
It is through science that we prove, but through intuition that we discover.
Mathematicians do not study objects, but relations between objects.
If that enabled us to predict the succeeding situation with the same approximation, that is...
Mathematicians are born, not made.
Just as houses are made of stones, so is science made of facts.
It is far better to foresee even without certainty than not to foresee at all.
If we knew exactly the laws of nature and the situation of the universe at...