I am grateful that I am not as judgmental as all those censorious, self-righteous people around me. In each of us there is a little of all of us.

To write brashly about some things, it is almost necessary not to know much about them.

He who is enamored of himself will at least have the advantage of being inconvenienced by few rivals.

A donkey appears to me like a horse translated into Dutch.

Delight at having understood a very abstract and obscure system leads most people to believe in the truth of what it demonstrates.

A good method of discovery is to imagine certain members of a system removed and then see how what is left would behave: for example, where would we be if iron were absent from the world: this is an old example.

Whenever he composes a critical review, I have been told, he gets an enormous erection.