They say that "he who flies highest, falls farthest" — and who am I to argue? But we can't forget that "he who doesn't flap his wings, never flies at all". And with that, I'll stop trying to convince myself that I can't fail; how dull the whole thing would be if that were true.
Letter to Larry Callen (30 October 1957), p. 71 - The Proud Highway : The Fear and Loathing Letters Volume I (1997)