If you can react the same way to winning and losing, that's a big accomplishment. That quality is important because it stays with you the rest of your life, and there's going to be a life after tennis that's a lot longer than your tennis life.

Whatever your goal in life, be proud of every day that you are able to work in that direction.

In tennis, at the end of the day you're a winner or a loser. You know exactly where you stand... I don't need that anymore. I don't need my happiness, my well-being, to be based on winning and losing.

Training the body to obey the mind as I have done differs from the more conventional method of getting the mind to obey the body.

I think team sports probably teach you more about giving - about being unselfish and being flexible.

If you're a champion, you have to have it in your heart.

Now that I'm losing some, I can see how tough I was -- the killer instinct, the single-mindedness, playing like a machine. Boy, that's what made me a champion.