A person is never happy except at the price of some ignorance. [The ability to focus on positives and distract your mind from negatives for at least a time is a necessary skill for being happy.]

I do not know any reading more easy, more fascinating, more delightful than a catalogue.

What frightens us most in a madman is his sane conversation.

People who don't count won't count.

Innocence most often is a good fortune and not a virtue.

Irony is the gaiety of reflection and the joy of wisdom.

It's not by amusing oneself that one learns.