Our biggest challenge in this new century is to take an idea that seems abstract - sustainable development - and turn it into a reality for all the world's people

As we move forward, you cannot resolve the potential food crisis or shortages without science being part of the solution. Science has to be part of the solution but African governments - and these are decisions for governments, whether they embrace or do not embrace genetically modified food - and for the moment, most African companies do not accept genetically modified seeds.

Knowledge is power. Information is liberating.

You have to develop a certain healthy distance to allow you to keep a clear head, to be able to analyse the situation, lead your team, and move forward with them, because there are times if I'm not careful... if you get too involved, it will consume you; it will consume you, and you will not be good to your team; the issues you are dealing with.

Globalization is a fact of life. But I believe we have underestimated its fragility.

I often quote an African proverb that says: "The world is not ours, the earth is not ours, It's a treasure we hold in trust for future generations." And I often hope we will be worthy of that trust.

I did not always achieve what I set out to do. Nevertheless, my personal example certainly suggests that hands-on experience can be helpful to future leaders.