The most wasted of all days is one without laughter.

A day without laughter is a day wasted.

All that I've learned, I've forgotten. The little that I still know, I've guessed.

Public opinion is the worst of all opinions.

Every day I add to the list of things I refuse to discuss. The wiser the man, the longer the list.

Pleasure can be supported by an illusion, but happiness rests upon truth.

Men whose only concern is other people's opinion of them are like actors who put on a poor performance to win the applause of people of poor taste; some of them would be capable of good acting in front of a good audience. A decent man plays his part to the best of his ability, regardless of the taste of the gallery.

When you want to be well-liked in the world, you have to let a lot of people teach you things that you know and they don't.