I've missed over 9,000 shots in my career. 
  I've lost almost 300 games. 
 26 times I've been trusted to take the game-winning shot and missed. 
 I've failed over and over and over again in my life. 
 And that is why I succeed.
Michael Jordan, as quoted in Nike Culture : The Sign of the Swoosh (1998), by Robert Goldman and Stephen Papson, p. 49