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

In my Olympic history I don't think I have achieved my potential as an athlete. That's what I want when I look back at my career. I want to be able to say I gave it my best shot.

I took a lot of bad things after Athens. I just learnt to deal with it. The problem was beforehand I had this feeling where I was trying to please everybody - I wanted everybody to like me.

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

I've had a lot of success over the years racing in New York, but the main point is that I feel the marathon is a different event, a lot more my event.

I have achieved a lot and I'm grateful for that - I'm just a bit greedy because I want to add the Olympics. It's once every four years - everyone wants it and very few people get it.

The biggest danger is trying to put too much pressure on yourself, trying to get in too good shape.