David Letterman says the single most powerful motivating force in his life is a desire to succeed and prevail. He explains how he feels about doing “Late Show With David Letterman”:
Every night youre trying to prove your self-worth. Its like meeting your girlfriends 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 Im finished, it makes me feel like an entire person. If Ive come short of that, Im not happy. How things go for me every night is how I feel about myself for the next 24 hours. Because Im not playing a characterIm trying to give you the best version of myself.