All of us have a God in us, and that God is the spirit that unites all life, everything that is on this planet. It must be this voice that is telling me to do something, and I am sure it's the same voice that is speaking to everybody on this planet - at least everybody who seems to be concerned about the fate of the world, the fate of this planet.

One of the reasons why I say we all need to work together to save the Congo forest, because if we don't save the Congo forest, the Amazon forest and the southeast Asia forest, if those forests release the carbon they are trapping at the moment, much of what you will be doing in the North will be negated by the amount of carbon released into the atmosphere.

Using trees as a symbol of peace is in keeping with a widespread African tradition. For example, the elders of the Kikuyu carried a staff from the thigi tree that, when placed between two disputing sides, caused them to stop fighting and seek reconciliation. Many communities in Africa have these traditions.

I have always felt that perhaps women have sometimes almost embraced the same values as men, and the same character as men, because they are in the men's world, and they are trying to fit into a system that men have created. And maybe in truth when there is a critical mass of women who play that role in governments, then we will see whether women can really manage power in a way that is less destructive than the way that men have used power.

I stand before you and the world humbled by this recognition and uplifted by the honour of being the 2004 Nobel Peace Laureate. As the first African woman to receive this prize, I accept it on behalf of the people of Kenya and Africa, and indeed the world. I am especially mindful of women and the girl child. I hope it will encourage them to raise their voices and take more space for leadership.

When I went back home, I was constantly being reminded, I'm an African woman, and so there are certain things I shouldn't do, certain ambitions that I should not entertain. That was a problem for me because I had never thought of myself as an African woman, never thought of myself as a woman to begin with. For me the limit was my capacity, my capability.

When people can't use you, they ridicule what you represent. I was lucky that I understood that, because when one does not understand that, it is very easy to be broken and to be subdued.