It's easy to say young people should believe in themselves, but the number one thing is recognizing that it's a journey, that you have to build confidence in yourself.

The biggest lesson from Africa was that life's joys come mostly from relationships and friendships, not from material things. I saw time and again how much fun Africans had with their families and friends and on the sports fields; they laughed all the time.

A good balance of winning and losing is important. If you just win all the time, you won't get anything out of it; having some tough losses can be really important.

The most important role models should and could be parents and teachers. But that said, once you're a teenager you've probably gotten as much of an example from your parents as you're going to.

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.

We've raised a lot of money, and learned how different it is raising money for a profit venture versus a non-profit one.