I'm not supposed to be able to speak clearly, and decipher what's going on in the media. I'm supposed to be the typical amateur who's 22 and scared to death and can't believe he won the Olympics.

I'm a fast learner. I may not run as fast as I used to, but I think I still learn as fast.

Join me in the final race to smash poverty and achieve the UN Millennium Development Goals

I'm not running for state Senate because I wanted to become a politician. I'm running because I wanted to serve.

I'm not a coach and I know it. I'm too busy and it doesn't pay. I'm expensive. But I would always advise.

After I left the podium in Atlanta, I felt so fulfilled in my career that I lost my desire to compete at that level again.

'm so fortunate to have done what I love to do for so long, but the day I retired was one of the best days of my life. Not because I was happy to get away from the sport, but because it was clear in my mind that I had done all I possibly could, and that it was time to go.