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

"The very first thing which a man has to do, in order to learn how to do a thing, is to learn how to unlearn it."

"There are three kinds of lies: lies, damned lies, and statistics."

"I was sorry to have to tell him that I had never heard of him. He was a very pleasant man, and I wished him well."

"Never argue with a fool. Onlookers may not be able to tell the difference."