Every person who has ever achieved anything has been knocked down many times. But all of them picked themselves up and kept going, and that is what I have always tried to do.

It is evident that many wars are fought over resources which are now becoming increasingly scarce. If we conserved our resources better, fighting over them would not occur ... protecting the global environment is directly related to securing peace. Those of us who understand the complex concept of the environment have the burden to act. We must not tire, we must not give up, we must persist.

And so I'm saying that, yes, colonialism was terrible, and I describe it as a legacy of wars, but we ought to be moving away from that by now.

You cannot enslave a mind that knows itself. That values itself. That understands itself.

There is no reason why a company like Monsanto, for example, that is pushing GMOs, cannot go to Kenya, partner with the university, partner with the research institutions, and try to promote - in a responsible way - advanced techniques to help farmers. But this should be done in such a way that the farmers' livelihoods are not undermined because the government is irresponsible or careless, or because it is compromised.

For us who are now in power, we need to be challenged to serve the people and ignore our own egos and personal interests so that we can really demonstrate to other African states that it is possible to share power without going to war.

Yet now the industrialized world is moving away from fossil fuels and moving towards renewable sources of energy. And because we have not invested so much into education, we don't have the technology and sometimes we don't even have the capital to buy this technology.