I remember in particular my first victory when I achieved a very fast time in what were perfect conditions but since then the wind has always been a factor against me.

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.

My father thought sport was something fun - he didn't know it was a way to make money.

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.

Always, if you win mentally, you can win physically as well.

Why should I say I will retire in three or four years? You retire the very moment you utter those words.

I will always listen to my coaches. But first I listen to my body. If what they tell me suits my body, great. If my body doesn't feel good with what they say, then always my body comes first.