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'.

You must do as your people do. If my people are poor, I must be poor. People ask me, 'Why don't you find a personal coach or a private car?' I can't. Then I won't be part of my people.

You know for me when I promise something I want to deliver. If you don't, you have to disappear.

Schooling is so important.

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

That is not enough. Sport has been great for me, a great learning place that if you want to achieve you can, even if you are from the poorest part of Africa.

If your body is damaged, wounded, it can be fixed, but if inside, mentally, you are wounded you cannot fix it, it's hard.