“Let me explain something to you, Fresh Mouth: I'm the only one who makes jokes.”

"Snakeskin" (song)
("Snakeskin" on YouTube (with lyrics)) https://www.youtube.com/watch?v=rAcSlJoTRQ4
Studio albums, The Evolution of Man (2012)

The Abolition of Work (1985)
Context: These experts who offer to do our thinking for us rarely share their conclusions about work, for all its saliency in the lives of all of us. Among themselves they quibble over the details. Unions and management agree that we ought to sell the time of our lives in exchange for survival, although they haggle over the price. Marxists think we should be bossed by bureaucrats. Libertarians think we should be bossed by businessmen. Feminists don't care which form bossing takes so long as the bosses are women. Clearly these ideology-mongers have serious differences over how to divvy up the spoils of power. Just as clearly, none of them have any objection to power as such and all of them want to keep us working.
You may be wondering if I'm joking or serious. I'm joking and serious. To be ludic is not to be ludicrous. Play doesn't have to be frivolous, although frivolity isn't triviality: very often we ought to take frivolity seriously. I'd like life to be a game — but a game with high stakes. I want to play for keeps.

Source: The Riverworld series, The Magic Labyrinth (1980), Ch. 19

self-titled TV comedy special, 1997
Standup routines

The Dignity of Human Nature (1754)

Quoted in " Scaramucci: 'If Reince wants to explain he's not a leaker, let him do that' http://www.cnn.com/2017/07/27/politics/anthony-scaramucci-reince-priebus/index.html" by Dan Merica, Elizabeth Landers and Eugene Scott, CNN (July 27, 2017).

Song lyrics, Infidels (1983), I and I

Jokes Explained page http://www.insaneabode.com/roboterotica/jokesexplained/index.html