Everyone on this thread seems to be so passionate about tennis, for a variety of personal reasons. I think we all get an enormous amount of value from the sport, and it's not all about the physical aspects. Can you share "what tennis taught me"? I'm not talking about "how to serve" or "how to hit a volley", but what you take away from the game, off the court, into your life. In other words, has tennis made you a better person? If so, why? Answers can be sarcastic, or serious!