My father wasn't really involved and my mom is the light in my life.

It's hard to have a bad hair day when you're famous.

I train so hard to make sure failure doesn't happen. If I do everything I can, and run as fast as I possibly can and someone still beats me, I don't think of that as failure.

Get involved in everything you've ever dreamed of doing.

I train harder than anyone else in the world. Last year I was supposed to take a month off and I took three days off because I was afraid somebody out there was training harder. That's the feeling I go through every day - Am I not doing what somebody else is doing? Is someone out there training harder than I am? I can't live with myself if someone is.

My career has always been one of the most important things, but after having a baby you find that it drops down on the totem pole.

I've set no world record.