I do not seek unpopularity as a badge of honour, but sometimes it is the price of leadership and the cost of conviction.

Lord Cranborne told the leader of the opposition to 'back me or sack me' - he succeeded in doing both.

Climate change is probably the greatest long-term challenge facing the human race.

I think Hillary Clinton is an outstandingly capable and decent person.

I say the elite looks out of touch because it's kind of saying; look we'll manage all this for you. You know, we know best. We'll sort it all out for you. And then because people believe that doesn't meet their case for change and they want real change, social media and the way the relationship between people can come into a sense of belonging very quickly, that then is itself a revolutionary phenomenon. You see this around the world.

I still think there is a residual desire amongst the majority of the public to be given a proper solution.

We have a situation where we are rich really as a world overall, and yet we have the capacity to destroy ourselves, either through nuclear weapons or through environmental degradation, and we allow the life chances of hundreds of millions of people to be destroyed because we haven't found the will to tackle it