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.

The spread of freedom is the best security for the free.

I also, as I think most people do, have a healthy instinct that if we upset the balance of nature, we are in all probability going to suffer a reaction. With world growth, and population as it is, this reaction must increase.

My office is on Twitter. I don't tweet myself - at least, not intentionally, but I probably should do.

Enough of talking: It is time now to do.

It's not that tens of millions of people all want to be violent. But they share the worldview that then, at its extreme, gives rise to the violence. And in my view, this is why this is such a global problem.

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