The difference between ordinary and extraordinary is that little extra.
The real power here lies in what Johnson leaves deliberately vague—that "little extra" is never the same thing twice, and nobody can hand it to you. For the athlete, it might be one more lap; for the writer, one more revision; for the parent, one more patient conversation when exhaustion whispers otherwise. The quote matters precisely because it refuses to romanticize excellence, instead suggesting something almost mundane: that the gap between a forgettable career and a remembered one often comes down to choices made when no one's watching, when the marginal return seems hardly worth the effort.