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

“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”

“Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.”

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

“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.”

“Equal opportunity means everyone will have a fair chance at being incompetent.”