Cats are peaceful and tranquil - they bring calmness with their serene personalities.

When I play, I'm boiling inside. I just try not to show it because it's a lack of composure, and if you give in to your emotions after one loss, you're liable to have three or four in a row.

If I win several tournaments in a row, I get so confident I'm in a cloud. A loss gets me eager again.

When I was younger, I was a robot. Wind her up and she plays tennis.

Of all my achievements in tennis, I'm probably as proud of my record on clay courts as any of my Wimbledon, U.S. Open or French singles titles.

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.

You can't give up! If you give up, you're like everybody else.