“Inside every sane person there's a madman struggling to get out," said the shopkeeper. "That's what I've always thought. No one goes mad quicker than a totally sane person.”

“No realistic, sane person goes around Chicago without protection.”

“In a totally sane society, madness is the only freedom.”

“I like you because you were mad. And you're pretty. And pretty sane for a mad person.”

“One person's crazy is another person's sane, I guess.”

“Madness is tonic and invigorating. It makes the sane more sane. The only ones who are unable to profit by it are the insane.”

“Very well then, better a sane crook than a mad puritan.”

“In a mad world, only the mad are sane!”

“There is, incidently, no way of talking about cats that enables one to come off as a sane person.”

“Mad, adj. Affected with a high degree of intellectual independence; not conforming to standards of thought, speech, and action derived by the conformants from study of themselves; at odds with the majority; in short, unusual. It is noteworthy that persons are pronounced mad by officials destitute of evidence that they themselves are sane.”