The pressure is hard. You get - the world is only watching every four years, and I think lots of people feel like they have to win in that time frame.

My mom always has this amazing ability to always see the best in a situation. In that moment [when finished 2nd in the 200 meter race in the 2008 Olympic games] I was just completely devastated. I mean, I had worked so hard; that was my opportunity. And she was just able to turn it around for me. She helped me to be able to see the other side of things and that this is not the end for me. She's just an amazing supporter and an encouraging person and she has a unique ability to do that. And so those are the kind of things she said to me in that moment and over the next four years. When things get tough, she's always been my strength.

Philippians 1:21 is very special to me because it helps to keep my life centered.

There was a race that I was running in Mexico City and I was the only high school athlete running against grown women. It was a professional race, but I ended up winning. That was kind of a turning point for me where I felt like, "Okay, I'm pretty good at this and there's a possibility for this to be a career for me." That was a defining moment for me.

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

And as long as I'm passionate about the sport, I'm able to do that and I'm happy, then I would love to do another Olympics. I'm just going to see how I'm feeling.

For me, my faith is the reason I run. I definitely feel I have this amazing gift that God has blessed me with, and it's all about using it to the best of my ability.