“A man doesn't know what he knows until he knows what he doesn't know.”

“America is a country that doesn't know where it is going but is determined to set a speed record getting there.”

“An economist is an expert who will know tomorrow why the things he predicted yesterday didn't happen today.”

“A censor is an expert in cutting remarks. A censor is a man who knows more than he thinks you ought to.”

“You can always tell a real friend: when you've made a fool of yourself he doesn't feel you've done a permanent job.”

“A pessimist is a man who looks both ways when he crosses the street.”

“The man who says he is willing to meet you halfway is usually a poor judge of distance.”