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

Mathematicians are born, not made.

A sane mind should not be guilty of a logical fallacy, yet there are very fine minds incapable of following mathematical demonstrations.

The mathematical facts worthy of being studied are those which, by their analogy with other facts, are capable of leading us to the knowledge of a physical law.

Geometry is not true, it is advantageous.

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