Being right is less important to us than the freedom to be wrong.

Never feel remorse for what you have thought about your wife; she has thought much worse things about you.

Already at the origin of the species man was equal to what he was destined to become.

What scientist would not long to go on living, if only to see how the little truths he has brought to light will grow up?

We bestow on others praise in which we do not believe, on condition that in return they bestow upon us praise in which we do.

It is not easy to imagine how little interested a scientist usually is in the work of any other, with the possible exception of the teacher who backs him or the student who honors him.

Being right is less important to us than the freedom to be wrong.