If you have one good idea, people will lend you twenty.

He who believes in freedom of the will has never loved and never hated

Whenever two good people argue over principles, they are both right.

Oh happy pessimists! What a joy it is to them to be able to prove again and again that there is no joy.

We are so vain that we even care for the opinion of those we don't care for.

In youth we learn; in age we understand.