I used to run to school, 10k every day. And this at altitude, perfect preparation, really.

I know what I want when I start a marathon: to win! But what do you want? Make sure you're clear in advance and don't go out too fast.

When I had no shoes I was comfortable - I used to run barefoot. When I wore shoes it was difficult. To run in shoes was ok, but at the beginning of my career it was hard.

At the moment I am a little bit politician, yes. I think that could be my next step. It is not because I want power, it is because of what I think I could do for the people.

My father thought sport was something fun - he didn't know it was a way to make money. Then I won a Mercedes at the world championships and I gave it to him. From the moment it arrived my father said: 'Good, you can support not just yourself but me too'.

When you talk about world record times, you have to understand that everything must be perfect the weather, the course, the temperature. It is not always enough to be in good shape.

I was the kind of child who worked hard every day with the cows and sheep - I was a very aggressive boy.