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.

If we can come up with innovations and train young people to take on new jobs, and if we can switch to clean energy, I think we have the capacity to build this world not dependent on fossil-fuel. I think it will happen, and it won't destroy economy.

The [UN Security Council] P5 ought to be dissuaded from using their veto power, which can paralyze the United Nations. The country blocking action ought to have to explain its decision and propose an alternative solution. It has been suggested that a veto only becomes effective if the vetoing state has the support of two or three other permanent members.

To go to war without the Security Council will not be in conformity with the Council.

Gender equality is more than a goal in itself. It is a precondition for meeting the challenge of reducing poverty, promoting sustainable development and building good governance.

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.

It is true that the principle of national citizenship, associated with rights, and the control of a country's borders are two key aspects of modern 'sovereign' nation states as they emerged in the Westphalian order. But there has been much progress since 1648.