On the brink of being satiated, desire still appears infinite.

One kills a man, one is an assassin; one kills millions, one is a conqueror; one kills everybody, one is a god.

There are big and little truths, but all belong to the same race.

It may offend us to hear our own thoughts expressed by others: we are not sure enough of their souls.

To reflect is to disturb one's thoughts.

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?

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.