Every night you're trying to prove your self-worth. It's like meeting your girlfriend's family for the first time. You want to be the absolute best, wittiest, smartest, most charming, best-smelling version of yourself. If I can make people enjoy the experience and have a higher regard for me when I'm finished, it makes me feel like an entire person. If I've come short of that, I'm not happy. How things go for me every night is how I feel about myself for the next 24 hours.
David Letterman, Parade Magazine, 26 May 1996 (quoted in Wholeheartedness by Chuck DeGroat, p.15)
