There's never going to be a system that is fair to everyone

I share Len Saunders’ concerns about childhood obesity and getting kids to be active beginning at an early age.

When you grow up on camera and in the public eye, you feel you have to put forth this image. I just took that to the extreme and there was a lot of pressure on me

I'm a competitor. I really enjoyed the race more than just going out and running to run.

I love performing in front of an audience and seeing smiles on the kids' faces.

Doing your best is more important than being the best.

At the Olympics, you there to do a job. I feel you should take it seriously. You should be respectful. You are putting on the red-white-and-blue and going out there to perform for your country.