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

To be a tennis champion, you have to be inflexible. You have to be stubborn. You have to be arrogant. You have to be selfish and self-absorbed. Kind of tunnel vision almost.

You've got to take the initiative and play your game. In a decisive set, confidence is the difference.

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.

You're always striving to play that perfect match.

Single-mindedness. I hate to say it because I don't think it's the best thing for developing a person, but the single-mindedness - just concentrating in the one area - that's what it takes to be a champion.

I realized that with hard work, the world was your oyster. You could do anything you wanted to do.