I just could never have imagined that I would be mentioned with Chris Evert or with Martina Navratilova, because I was just a kid with a dream and a racquet. Living in Compton, you know, this never happened before.

I was talking to my mom one time, like, "Gosh, I'm 30." And she's like, "In your thirties you're even stronger than in your twenties." I didn't believe her, but I have played better in my thirties.

I'm proud to have opened [two] schools in Africa and one in Jamaica [through the Serena Williams Fund and its partners]. I was given a lot. I was given two parents. That's already starting above a lot of kids. And then I was given the opportunity to play tennis and parents who supported that. I feel I can give back.

I wanted to get really fit. I wanted to lose some weight. So I've been doing Pilates and yoga, trying to lean out my body so I won't be bulky.

If anything, we haven't changed much since we [with Venuse Williams] were kids. We really are the same people.

I can't become satisfied, because if I get satisfied, I'll be like, "Oh, I've won Wimbledon, I've won the U.S. Open. Now can I relax." But now people are really going to be fighting to beat me.

If anything, you know, I think losing makes me even more motivated.