Don't let anyone define you. You define yourself.

It's important to try to get people to think about women's wellness.

I think it's really important to have portion control. I don't believe in losing weight quickly.

You have got to want to be the best before you can even begin to reach for that goal, and you have got to be prepared to sacrifice a lot to get there.

No matter how tough, no matter what kind of outside pressure, no matter how many bad breaks along the way, I must keep my sights on the final goal, to win, win, win-and with more love and passion than the world has ever witnessed in any performance.

Tennis taught me so many lessons in life. One of the things it taught me is that every ball that comes to me, I have to make a decision. I have to accept responsibility for the consequences every time I hit a ball.

I've never cared that much for cementing my place in history. Sports is so transitory, so ephemeral. It just seems like so much nonsense comparing me to Helen Wills Moody or Suzanne Lenglen or anybody else from some other time. One lesson you learn from sports is that life goes on without you.