Quotes by : Henri Poincaré

Pure analysis puts at our disposal a multitude of procedures whose infallibility it guarantees; it opens....

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

Why is it that showers and even storms seem to come by chance, so that many people think it quite natural....

Consider now the Milky Way. Here also we see an innumerable dust, only the grains of this dust are no....

Physicists believe that the Gaussian law has been proved in mathematics while mathematicians think that....

The philosophers make still another objection: "What you gain in rigour," they say, "you lose in objectivity.....

Experiment is the sole source of truth. It alone can teach us something new it alone can give us certainty.....

If we wish to foresee the future of mathematics, our proper course is to study the history and present....

How is it that there are so many minds that are incapable of understanding mathematics? ... the skeleton....