Climate change is the greatest threat to human rights in the 21st century.

There are some parts of the business world, in my judgment, that are actually trying to ensure that the U.S. does not take on board the preponderance of arguments for global warming, and that is something I am really very concerned about.

I don't like a bipolar or a unipolar world. I like a multipolar world but on many occasions people have been surprised that South Africa has not seemed, internationally as well as internally, to take a decision that affirms the true values of your Constitution and the vision of those who were there at the beginning - Madiba himself and others.

If you live in a global world and you want to champion liberty in it, then you have you got to sign up to that global world.

South Africa is regarded as being an extraordinarily important country - not just for South Africa, but for Southern Africa, for the BRICS, working now in a new way in which power is becoming more shared - thankfully.

As a citizen of Ireland I have more sovereignty over our government. Because citizens now have more ways of holding the Irish government to account, not just under Irish constitutional law, but under the European system, at Strasbourg and Brussels. This, I believe, is the benefit for individual citizens.

Many people think that we have no shared value system in the world today but we actually do.