I know some of my self-worth comes from tennis, and it's hard to think of doing something else where you know you'll never be the best. Tennis players are rare creatures: where else in the world can you know that you're the best? The definitiveness of it is the beauty of it, but it's not all there is to life and I'm ready to explore the alternatives.
Martina Navratilova (b. 1956), U.S. tennis player; born and raised in Czechoslovakia. As quoted in the New York Times, p. B19 (September 30, 1993).
Announcing her decision to retire from professional tennis at the end of the 1994 season, which would be her twenty-second year of competitive singles play. For several years, she had been the top-ranked woman singles player in the world (and, some said, the best in history); by this time, she had slipped to third ranking.