Men can have a huge turnover of sponsorship and still survive a lot better than the women. But the women's ratings are better, at least at home in the United States than in the men's tennis.

Some people do have softer boundaries.

I always think it's best to pretend you're in a tenuous position. Just as a player, you always want to stay in the now and work hard but also have goals for the future. There's no promises in any entrepreneurial business. You have to really work hard every year and also try to envision where you want to go in the future at the same time.

In 1973, a woman could not get a credit card without her husband or father or a male signing off on it.

I love to promote our sport. I love grass-roots tennis. I love coaching. I love all parts of the sport. I love the business side.

Natural talent only determines the limits of your athletic potential. It's dedication and a willingness to discipline your life that makes you great.

Reputation is what others think about you. What's far more important is character, because that is what you think about yourself.