Young people should be at the forefront of global change and innovation. Empowered, they can be key agents for development and peace. If, however, they are left on society's margins, all of us will be impoverished. Let us ensure that all young people have every opportunity to participate fully in the lives of their societies.

Tolerance, inter-cultural dialogue and respect for diversity are more essential than ever in a world where peoples are becoming more and more closely interconnected.

Sometimes in peacekeeping operations you show force in order not to use force - people realise that there's a pushback and there's a solid force there that's not going to be pushed around, that sometimes helps.

We shall not defeat any of the infectious diseases that plague the developing world until we have also won the battle for safe drinking water, sanitation, and basic health care.

I think the generational change is going to be so important for Africa that we really should encourage and push it as much as we can, because some of these younger men and women, who are men and women of their times, and are also connected to the rest of the world, wouldn't even know how to behave in the way some of the old leaders do.

I was an ordinary boy at school, a young man. In fact, what did the headmaster once say? "You're constantly challenging those in authority; questioning and challenging those in authority." Which was not really the way I saw it. I felt there were questions that had to be answered, and things that weren't quite right.

We have to be very clear with the population and the countries we enter what we can do and what we cannot do.