No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond.

The miser puts his gold pieces into a coffer; but as soon as the coffer is closed, it is as if it were empty.

Most often it happens that one attributes to others only the feelings of which one is capable oneself.

The world will be saved by one or two people.

Woe to these people who have no appetite for the very dish that their age serves up.

I owe much to my friends; but, all things considered, it strikes me that I owe even more to my enemies. The real person springs life under a sting even better than under a caress.

The important thing is being capable of emotions, but to experience only one's own would be a sorry limitation.