I say to the Taliban: surrender the terrorists; or surrender power. It's your choice.

I had discovered long ago the first lesson of political courage: to think anew. I had then learned the second: to be prepared to lead and to decide. I was now studying the third: how to take the calculated risk. I was going to alienate some people, like it or not. The moment you decide, you divide.

Anywhere, anytime ordinary people are given the chance to choose, the choice is the same: freedom, not tyranny; democracy, not dictatorship; the rule of law, not the rule of the secret police.

Immigration is good for a country. It brings fresh energy.

The emphasis placed by more and more companies on corporate social responsibility, symbolises the recognition that prosperity is best achieved in an inclusive society.

Well, we definitely need a strong and clear and assertive America. That's for sure. But you've always got to build alliances. And so it's very important that we are able to build those alliances. And where we don't do what in a way to extremists want us to do, which is to make this into a battle between the West and Islam - it's not. This isn't a clash between civilizations. It's about whether the values of tolerance and respect for difference prevail.

You choose your own reality and you - social media then amplifies those conspiracy theories. So that's why I say social media is itself a revolutionary phenomenon.