People divide into groups where they talk to each other, but don't talk across the divide. And yet most of the challenges we face in the world today are challenges that are to do with trade, with technology, with how you make sure that people are properly educated, reform your health care system.

This mass terrorism is the new evil in our world today

Retreat might give us a moment of respite but years of repentance at our weakness would, I believe, follow.

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

We need to develop the new green industrial revolution that develops the new technologies that can confront and overcome the challenge of climate change; and that above all can show us not that we can avoid changing our behaviour but we can change it in a way that is environmentally sustainable.

I still think the world is better off and safer without Saddam Hussein.

Every so often, I feel I should graduate to classical music, properly. But the truth is, I'm more likely to listen to rock music.