I've been to three Olympics and I don't feel I've ever quite achieved my best at any of them.

Never set limits, go after your dreams, don't be afraid to push the boundaries. And laugh a lot - it's good for you!

Doing the long endurance stuff seems to have given me the strength to sustain the speed. I think my body is just a lot stronger (thanks to the marathon)... By increasing the long runs, I found that does not take anything away from the speed but increases the strength on the track.

I've been to three Olympics and I don't feel I've ever quite achieved my best at any of them.

I have always run as hard as I can. You are not going to run any harder with or without men. You are running on your own two feet.

From my training I can get a good idea of what I'm capable of.

I am not driven by any bitterness by what happened in Athens. I learnt a lot of lessons from it and probably came through it a stronger person in the end. There have been a lot of near misses, and that's taught me to keep persevering and that there is a chance it can come right.