My mom always has this amazing ability to always see the best in a situation.

I always look back to my first Olympic medal in 2004 in Athens. I was very new to the sport, and it was my first big win at the Olympics.

I don't have a sprinter's body.

My speed is a gift from God, and I run for His glory. Whatever I do, it all comes from him.

I'm really laid back but I still like to dress up sometimes.

I try to think about my goals. I think about my competitors-I know they're working hard, and if they are, I have to work hard too. I have to be one step ahead of them.

I myself am frustrated in just where sports are at. It's a hard thing when you're out there working every day, and you know that someone else is cheating and they may not necessarily get caught.