"Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times."

"Faith is believing what you know ain't so."

"Good breeding consists in concealing how much we think of ourselves and how little we think of the other person."

"It is noble to teach oneself, but still nobler to teach others — and less trouble."

"It is by the goodness of God that in our country we have three unspeakably precious things: freedom of speech, freedom of conscience, and the prudence never to practice either of them."