Mathematicians do not deal in objects, but in relations between objects; thus, they are free to replace some objects by others so long as the relations remain unchanged. Content to them is irrelevant: they are interested in form only.
To invent is to discern, to choose. - Henri Poincare
To invent is to discern, to choose.
- Henri Poincare
Talk with M. Hermite. He never evokes a concrete image, yet you soon perceive that the more abstract entities are to him like living creatures. - Henri Poincare
Talk with M. Hermite. He never evokes a concrete image, yet you soon perceive that the more abstract entities are to him like living creatures.
Zero is the number of objects that satisfy a condition that is never satisfied. But as never means "in no case", I do not see that any progress has b… - Henri Poincare
Zero is the number of objects that satisfy a condition that is never satisfied. But as never means "in no case", I do not see that any progress has b…
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 … - Henri Poincare
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 …
Why is it that showers and even storms seem to come by chance, so that many people think it quite natural to pray for rain or fine weather, though th… - Henri Poincare
Why is it that showers and even storms seem to come by chance, so that many people think it quite natural to pray for rain or fine weather, though th…
The task of the educator is to make the child's spirit pass again where its forefathers have gone, moving rapidly through certain stages but suppress… - Henri Poincare
The task of the educator is to make the child's spirit pass again where its forefathers have gone, moving rapidly through certain stages but suppress…
One does not ask whether a scientific theory is true, but only whether it is convenient. - Henri Poincare
One does not ask whether a scientific theory is true, but only whether it is convenient.
I entered an omnibus to go to some place or other. At that moment when I put my foot on the step the idea came to me, without anything in my former t… - Henri Poincare
I entered an omnibus to go to some place or other. At that moment when I put my foot on the step the idea came to me, without anything in my former t…
For a long time the objects that mathematicians dealt with were mostly ill-defined; one believed one knew them, but one represented them with the sen… - Henri Poincare
For a long time the objects that mathematicians dealt with were mostly ill-defined; one believed one knew them, but one represented them with the sen…
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