Honesty is largely a matter of information, of knowing that dishonesty is a mistake. Principle is not as powerful in keeping people straight as a policeman.

Express a mean opinion of yourself occasionally; it will show your friends that you know how to tell the truth.

If you don't learn to laugh at troubles, you won't have anything to laugh at when you grow old.

A reasonable probability is the only certainty.

The average man's judgment is so poor, he runs a risk every time he uses it.

The feeling of sleepiness when you are not in bed, and can't get there, is the meanest feeling in the world.

You can't do anything unless you do it yourself. And usually you can't do it yourself very well.