Winning isn't everything, but playing and competing and striving and going through things can be a lot of fun and really important. As long as you're doing it in a way that's healthy, sports can be an incredible opportunity.

The money was good while it lasted. The best part was clearly that it changed my view of what's possible, as far as thinking how you can have an impact on a national level.

Community service has taught me all kinds of skills and increased my confidence. You go out there and think on your feet, work with others and create something from nothing. That's what life's all about.

When we're young we have a very clear vision of how life is supposed to be, and it all seems very neatly packaged.

I was on Oprah's show recently talking about the people who impacted me the most. One was a teacher and one was my soccer coach. I didn't even go into my family, who had the most influence.

I'd never been a teacher before, and here I was starting my first day with these eager students. There was a shortage of teachers, and they had been without a math teacher for six months. They were so excited to learn math.

If I want to continue to build the kind of effort we have with Do Something, being in a public office would help. I wouldn't rule it out, but it's not something I feel determined to do.