“In politics stupidity is not a handicap.”

“Better to keep your mouth shut and appear stupid than to open it and remove all doubt”

“Only two things are infinite, the universe and human stupidity, and I’m not sure about the former”

“Once harm has been done, even a fool understands it”

“A wise man gets more use from his enemies than a fool from his friends”

“People who know little are usually great talkers, while men who know much say little”