As a scientist I cannot say we don't want to hear anything about GMOs, because these are advances in science. But I think its also important, especially when you are dealing with food, to be cautious.

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'm sure that many people who are involved in an environmental effort ... they will be pretty much encouraged by this recognition.

You have to know yourself, and that once you know yourself, then you cannot be bound by - because sometimes we are bound by other people's thoughts, because we are not sure about ourselves. But once you know yourself... I guess it is really an expression of the biblical statements that the truth will make you free! When you know, then you are free, your mind is free.

Passion begins with a burden and a split-second moment, when you understand something like never before. That burden is on those who know. Those who don't know are at peace. Those of us who do know get disturbed and are forced to take action.

I think some of these solutions are prepared in an office without a full understanding of the local situation.

When resources are degraded, we start competing for them, whether it is at the local level in Kenya, where we had tribal clashes over land and water, or at the global level, where we are fighting over water, oil, and minerals. So one way to promote peace is to promote sustainable management and equitable distribution of resources.