We eagerly get hold of a law that serves as a weapon to our passions.

The experiences show us just as we are; they make us see our own defects.

Mediocrity has no greater consolation than in the thought that genius is not immortal.

A rainbow which lasts for a quarter of an hour is looked at no longer.

Magic is believing in yourself, if you can do that, you can make anything happen.

The greater the knowledge, the greater the doubt.

Nature understands no jesting. She is always true, always serious, always severe. She is always right, and the errors are always those of man.