You need younger men in Africa, men and women in African politics.

Obama saying Gaddafi must go. Putting it upfront like that... it's not very helpful.

It may seem sometimes as if a culture of peace does not stand a chance against the culture of war, the culture of violence and the cultures of impunity and intolerance. Peace may indeed be a complex challenge, dependent on action in many fields and even a bit of luck from time to time. It may be a painfully slow process, and fragile and imperfect when it is achieved. But peace is in our hands. We can do it.

If you are neutral in a situation where one side is patently being mistreated, the conclusion is that you're siding with this wrong.

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

The UN was very media-shy, and its relationship with the press was very controlled; although periodically I spoke to the press, the rule was, only the secretary-general speaks to the press; only the secretary-general makes... So you would see many situations where under-secretaries-general would come in and speak. I opened that, and I encouraged all of them to speak in their areas, whether it was peacekeeping or humanitarian efforts.

Nuclear terrorism is still often treated as science fiction. I wish it were. But unfortunately we live in a world of excess hazardous materials and abundant technological know-how, in which some terrorists clearly state their intention to inflict catastrophic casualties. Were such an attack to occur, it would not only cause widespread death and destruction, but would stagger the world economy... [creating] a second death toll throughout the developing world.