The whole reason I moved to the U.S. to be coached by Alberto Salazar is to be able to improve 1 or 2 per cent. I was sick of coming sixth in the world, seventh in the world, and get close to a medal, but not quite there, half-a-second.

Growing up, I would never have thought that I'd be a double Olympic champion, with a lovely home and beautiful kids.

I don't know much about politics, but you have to look at it with the bigger picture and think what's best for us now, what's best for us in 10 years' time, what's best for our kids' kids' future - and I don't know.

My first Olympics memory was watching Haile Gebrselassie in Sydney 2000. His sprint finish to defend his title really moved me.

I always like to appreciate any achievement but then try and figure out how to top that the next time.

In an ideal world, we would charge people a $10,000 success fee when they get married or a $5,000 success fee if they enter into a relationship with someone. Unfortunately, that's a little bit hard to track, although someday maybe we'll get around to that.

When everything happens to you when you're so young, you're very lucky, but by the same token, you're never going to have that same feeling again. The first time anything happens to you - your first love, your first success - the second one is never the same.

I have to make sure I stay focused and have the same ambition I've always had and work hard - that's the key to success.