All our life passes in this way: we seek rest by struggling against certain obstacles, and once they are overcome, rest proves intolerable because of the boredom it produces.

Nothing gives rest but the sincere search for truth.

No animal admires another animal.

The sole cause of all human misery is the inability of people to sit quietly in their rooms.

Everyone, without exception, is searching for happiness.

Justice is as much a matter of fashion as charm is.

Curiosity is only vanity. Most frequently we wish not to know, but to talk. We would not take a sea voyage for the sole pleasure of seeing without hope of ever telling.