His Holiness brings a wealth of experience to this exalted office. The United Nations and the Holy See share a strong commitment to peace, social justice, human dignity, religious freedom and mutual respect among the world's religions.

In some ways, the challenges are even more daunting than they were at the peak of the cold war. Not only do we continue to face grave nuclear threats, but those threats are being compounded by new weapons developments, new violence within States and new challenges to the rule of law.

Above all else, we need a reaffirmation of political commitment at the highest levels to reducing the dangers that arise both from existing nuclear weapons and from further proliferation.

I think that these flows of refugee are the inevitable counterparts to the flow of capital and goods. In other words, they too are by-products of globalisation.

You have made people listen. You have made people care, and you have taught us that whether we are poor or prosperous, we have only one world to share. You have taught young people that they do have the power to change the world.

We had a rule in the school that when you're punished, you carry out the punishment and then complain, which I felt was absolutely unfair: if I'd done it, what was the point of complaining?

A world government can intervene militarily in the internal affairs of any nation when it disapproves of their activities.