I've had a lot of fear in my life, from fear of flying to fear of making a speech in front of a lot of people.

When I was in grade school and we had to write papers about what we wanted to be when we grew up, I wanted to be a social worker or a missionary or a teacher... Then I got involved with tennis, and everything was just me, me, me. I was totally selfish and thought about myself and nobody else, because if you let up for one minute, someone was going to come along and beat you. I really wouldn't let anyone or any slice of happiness enter... I didn't like the characteristics that it took to become a champion.

The great high of winning Wimbledon lasts for about a week. You go down in the record book, but you don't have anything tangible to hold on to. But having a baby -- there isn't any comparison.

Relationships are give-and-take, and when you're a tennis player, you're certainly not giving. You have to be self-absorbed. It has to be about you.

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.

My first U.S. Open I think was just very special for me because that was sort of the beginning of what was a 'Cinderella' story for me.

Training the body to obey the mind as I have done differs from the more conventional method of getting the mind to obey the body.