Telling the truth is the funniest joke in the world.

The only time my education was interrupted was when I was in school.

Even the youngest of us may be wrong sometimes.

Men are not governed by justice, but by law or persuasion. When they refuse to be governed by law or persuasion, they have to be governed by force or fraud, or both.

Keep away from books and from men who get their ideas from books, and your own books will always be fresh.

Has fear ever held a man back from anything he really wanted?

Progress is impossible without change; and those who cannot change their minds cannot change anything.