“There is a grim and ghastly humor -- the humor that is born of a pathetic philosophy -- which now and then strikes me in reading the bright and keen-witted work of our American paragraphers. It is a humor that may be crystallized by hunger and sorrow and tears. It is not found elsewhere as it is in America. It is out of the question in England, because an Englishman cannot poke fun at himself. He cannot joke about an empty flour-barrel. We can: especially if by doing it we may swap the joke for another barrel of flour. We can never be a nation of snobs so long as we are willing to poke fun at ourselves.”

Gail Russell Chaddock (December 9, 2005) "Backstory: Serious business of jokes in politics", Christian Science Monitor, p. 20.

Source: Lord of Scoundrels

Steve Lowery (October 23, 1993) "What's So Funny? Humor Comes Under Harsh Glare of Political Correctness", Press-Telegram, p. C1.

Source: The Well of Ascension

Biographical memoir: "John von Neumann (1903 - 1957)" in Year book of the American Philosophical Society (1958); later in Symmetries and Reflections : Scientific Essays of Eugene P. Wigner (1967), p. 261
Context: A deep sense of humor and an unusual ability for telling stories and jokes endeared Johnny even to casual acquaintances. He could be blunt when necessary, but was never pompous. A mind of von Neumann's inexorable logic had to understand and accept much that most of us do not want to accept and do not even wish to understand. This fact colored many of von Neumann's moral judgments. "It is just as foolish to complain that people are selfish and treacherous as it is to complain that the magnetic field does not increase unless the electric field has a curl. Both are laws of nature." Only scientific intellectual dishonesty and misappropriation of scientific results could rouse his indignation and ire — but these did — and did almost equally whether he himself, or someone else, was wronged.

What I Saw at the Revolution : A Political Life in the Reagan Era (1990), p. 179
Context: Wit penetrates; humor envelops. Wit is a function of verbal intelligence; humor is imagination operating on good nature. John Kennedy had wit, and so did Lincoln, who also had abundant humor; Reagan was mostly humor.

[NewsBank, E1, That science guy is back, in 'Eyes of Nye', Seattle Post-Intelligencer, Seattle, Washington, April 5, 2005, Tom Paulson]

The Humanist interview (2012)
Context: There were never that many women stand-up comics in the past because the power to make people laugh is also a power that gets people upset. But the ones who were performing were making jokes on themselves usually and now that’s changed. So there are no rules exactly but I think if you see a whole group of people only being self-deprecating, it’s a problem.
But I have always employed humor, and I think it’s absolutely crucial that we do because, among other things, humor is the only free emotion. I mean, you can compel fear, as we know. You can compel love, actually, if somebody is isolated and dependent — it’s like the Stockholm syndrome. But you can’t compel laughter. It happens when two things come together and make a third unexpectedly. It happens when you learn something, too. I think it was Einstein who said he had to be careful when he shaved because if he thought of something suddenly, he’d laugh and cut himself.
So I think laughter is crucial. Some of the original cultures, like the Dalit and the Native American, don’t separate laughter and seriousness. There’s none of this kind of false Episcopalian solemnity.