The feeling of accomplishment welled up inside of me, three Olympic gold medals. I knew that was something nobody could ever take away from me, ever.

When I was going through my transition of being famous, I tried to ask God, why was I here? What was my purpose? Surely, it wasn't just to win three gold medals. There has to be more to this life than that.

My doctor told me I would never walk again. My mother told me I would. I believed my mother.

Never underestimate the power of dreams and the influence of the human spirit. We are all the same in this notion: The potential for greatness lives within each of us.

I don't know why I run so fast. I just run.

No matter what great things you accomplish, somebody helps you.

Believe me, the reward is not so great without the struggle.