“...Gentlemen don't understand anything, however wise they may be.”

“Listening doesn't mean trying to understand. Anything, however trifling, may be of use one day. What matters is to know something that others don't know you know.”

“...it is always wise to do one's duty, however unpleasant that duty may seem to be." -Ozma”

“To fear death, gentlemen, is no other than to think oneself wise when one is not, to think one knows what one does not know. No one knows whether death may not be the greatest of all blessings for a man, yet men fear it as if they knew that it is the greatest of evils.”

“The wise never confuse information or data, however prodigious or cleverly deployed, with comprehensive knowledge or wisdom...Be wise.”

“It's never wise to laugh at things you don't understand...If you're not careful, they might start laughing back at you.”