My parents paid me small amounts for cleaning my room or cleaning the dishes and stuff, but I never really had a real job before I started on my professional tennis career.

It's very expensive to be a professional tennis player with all the travel and the flights and the hotels and everything.

There are periods when you feel really good. You feel the ball is bigger. The court is larger. You feel like you can't miss. And then there are periods when you feel, 'OK, I'm not feeling great.' But I still need to try to find a way to win.

If you think negatively, it's hard to get out of tense moments.

If you can count your money, you don't have a billion dollars.

I'm always amazed at how many people assume a business has to lose money before it makes money.

I think every model has times when they get obnoxious and crazy. You all of a sudden realize you are young and beautiful and you have money, and you just kind of go nutty for awhile.

What saddens me is the corruption of youth and beauty, and the loss of soul, which is only replaced by money.