David Letterman

"You have to believe in yourself when no one else does."

"Ambition is like a ladder that cannot be climbed with your hands in your pockets."

"The trouble with the rat race is that even if you win, you're still a rat."

"People will forget what you said, people will forget what you did, but people will never forget how you made them feel."

"I figure that if you're going to be on television, you might as well try to be funny."

"A writer is someone for whom writing is more difficult than it is for other people."

"The late show is the only place on television where you can say what you want, when you want."

"I think it's important to laugh, especially at yourself."

"The key to a good relationship is communication and honesty."

"Life is too short to be miserable."

"I've learned that people will forget what you said, but they'll remember how you treated them."

"Success is a lousy teacher. It seduces smart people into thinking they can't lose."

"The best thing about being famous is that when you bore people, they think it's their fault."

"You can't fake sincerity on television."

"The longest stretch of time with no new ideas gets boring."

"I think technology is changing the way we interact with each other."

"The audience wants to be entertained, not lectured."

"When you're on TV, you're dealing with America's living room."

"I believe that laughter is the best form of medicine."

"The secret is to make people feel comfortable enough to be themselves."

"I never wanted to be a movie star. I wanted to be good at what I do."

"Change is scary, but necessary for growth."

"You know what? Life is short. Make it count."

"The world is full of people who need a good laugh."

"I think the best comedy comes from personal experience."

"If you're not willing to take risks, you'll never succeed."

"The mark of a good person is how they treat people they don't have to be nice to."

"I've learned that it's better to give than to receive."

"I want to be a talk show host. I want to interview people and make them laugh."

"The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack of will."