"A joke without a point, inane and bald, itself a joke on joking may be called."
~Menander of Athens
"A thing said in jest, is half confessed."
"Jokes are better than war. Even the most aggressive jokes are better than the least aggressive wars. Even the longest jokes are better than the shortest wars."
"A joke is not a thing but a process, a trick you play on the listener's mind. You start him off toward a plausible goal, and then by a sudden twist you land him nowhere at all or just where he didn't expect to go."
"Whatever is funny is subversive, every joke is ultimately a custard pie... a dirty joke is a sort of mental rebellion."
"One of the standing jokes of Congress is that the new Congressman always spends the first week wondering how he got there and the rest of the time wondering how the other members got there."