"A man can't be too careful in the choice of his enemies."
Oscar Wilde
"You learn more when things go wrong. You can't understand success – too many intangibles."
David E. Kelly
"I don't have a warm personal enemy left. They've all died off. I miss them terribly because they helped define me."
Clare Boothe Luce
"I don't know the key to success, but the key to failure is trying to please everybody."
Bill Cosby