“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.”

“The man who is always waving the flag usually waives what it stands for.”

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

“An intelligence test sometimes shows a man how smart he would have been not to have taken it.”

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

“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.”