You can't really blame a child for wanting to quit when he's not excelling at a sport. It can be a huge blow to one's self-esteem to be the worst at something, especially in a team environment when your performance affects everyone else's.
Earl Woods' awareness is deceptively simple, and within it lays an important concept for parenting: Once we understand the thinking behind an action, we can begin to influence change in a desired direction.
We silently reflect on what it must be like to "win" -- to be tested -- to be challenged, and to be left not wanting. We wonder what it would be like to experience the fullness of striving, and striving honestly.