Error is acceptable as long as we are young; but one must not drag it along into old age.

To act is easy; to think is hard.

It's true that nothing in this world makes us so necessary to others as the affection we have for them.

Unlike grown ups, children have little need to deceive themselves.

In society every man is taken for what he gives himself out to be; but he must give himself out to be something. Better to be slightly disagreeable than altogether insignificant.

The miller believes that all the wheat grows so that his mill keeps running.

The thinking person has the strange characteristic to like to create a fantasy in the place of the unsolved problem, a fantasy that stays with the person even when the problem has been solved and truth made its appearance.