"In the past you can be funny even though you are the principal. In the present, mishaps are always funnier if they happen to someone else."
(Chuck Jones)

"Jokes are grievances."
(Marshall McLuhan)

"Laughing at ourselves is possible when we are able to see humanity as it is(a little lower than the angels and at times only slightly higher than the apes." (Tom Mullen)

"Laughter is the shortest distance between two people."
(Victor Borge)

"Perhaps I know best why it is man alone who laughs; he alone suffers so deeply that he had to invent laughter."
(Friedrich Wilhelm Nietzsche)

"That's not true. Unless 'sense of humor' means 'money.' I don't believe them bitches for second."
(Dave Chappelle, on women wanting a guy with a "sense of humor")

"The most wasted day of all is that on which we have not laughed."
(Sébastien-Roch Nicolas Chamfort, 1740/41-1794)

"The only real laughter comes from despair."
(Groucho Marx, The Groucho Letters)

"The person who knows how to laugh at himself will never cease to be amused."
(Shirley MacLaine)

"There is always a secret irritation about a laugh into which we cannot join."
(Agnes Repplier)