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.

I do not want to end up with an American style of politics, with us going out there beating our chest about our faith. Politics and religion - it is not that they do not have a lot in common, but if [religion] ends up being used in the political process, I think that is a bit unhealthy.

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.

In retrospect, the Millennium marked only a moment in time. It was the events of September 11 that marked a turning point in history, where we confront the dangers of the future and assess the choices facing humankind.

There's a deep affection and respect for the Queen and the monarchy in the U.K. But Diana was an extraordinary, iconic figure and her death sparked a fierce reaction, part grief and part anger at her being taken away. It was very fraught.

And just as the terrorist seeks to divide humanity in hate, so we have to unify it around an idea. And that idea is liberty.

When I started out as Prime Minister I wanted to please all the people all the time. By the end I was wondering if I pleased any of the people any of the time.