I knew that if I woke up hung over, I couldn't do the best possible job on the show, so I had to quit. Also, I'd consumed a lot of beer for a lot of years, and I thought, That's enough. I've had my fun and I'm glad I quit.
David LettermanI don't like stand-up comedy that requires a lot of props. I really respect people who can walk out onstage alone and with no other tool but their own minds and can make you laugh and maybe even think a little.
David LettermanPrince William and Kate Middleton are in New York City. We have got to do something about immigration.
David Letterman