I think the center ground have got to become the people of change again and not the guardians of the status quo. And that is the weakness it comes to in our campaign. You can see it in your politics, you can see it everywhere.

But the world is ever more interdependent. Stock markets and economies rise and fall together. Confidence is the key to prosperity. Insecurity spreads like contagion. So people crave stability and order.

Once his wife goes to sleep it takes a minor nuclear explosion to wake her.

I think the people like myself who are in the center ground of politics and who think that center left and center right can cooperate and work together. Who don't like this sort of insurgent populism because we think it's not really going to deliver for the people, I think there's a big responsibility on us in the center to get our act together. And to work out radical but serious solutions to the problems people face.

If you've got communities that feel they've been left behind, if you've got - as you do in Britain at the moment, you have communities that believe they're being changed by immigration, that they don't have job opportunities, and that they're disregarded and that they don't - they've got no stake in a future which embraces globalization, you've got to address that issue.

One thing, change, is what everyone says. The question is, what type of change? What's the right change to produce a different outcome for the people left behind by globalization?

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