"If I traveled to the end of the rainbow As Dame Fortune did intend, Murphy would be there to tell me The pot's at the other end."

"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority."

"The only way to reform some people is to chloroform them."

"No pressure, no diamonds."

"It isn't easy for an idea to squeeze itself into a head filled with prejudice."

"The man who insists upon seeing with perfect clearness before he decides, never decides. Accept life, and you must accept regret."

"I think it is good that books still exist, but they make me sleepy."

"Humanity takes itself too seriously. It's the world's original sin. If the caveman had known how to laugh, history would have been different."

"The highest possible stage in moral culture is when we recognize that we ought to control our thoughts."

"Stupid people always think they are right. Wise people listen to advice."

"Teaching was the hardest work I had ever done, and it remains the hardest work I have done to date."

"If we would build on a sure foundation in friendship, we must love friends for their sake rather than for our own."