It's very hard for someone who makes $1,000 a year or some who makes less than $1 a day to care about the environment.

The two world wars boosted American power and devastated potential rivals to an extent that could not have lasted more than a few decades.

I absolutely am an environmentalist. I am probably more of an environmentalist than most people who live in the world, but I think that comes from my position in the world and that doesn't make me a better person.

The United States is not longer going to be the world's policemen and our days of determining you're in or you're out around the world no matter what the level of direct American interest or connection are going to be very limited. Increasingly, Africa will be doing that.

It's very hard for someone who makes $1,000 a year or some who makes less than $1 a day to care about the environment.

Strong states and blocs of strong states are the only source of power and legitimacy capable of driving an international agenda in today's world.

Berlin is a very edgy place, a very cosmopolitan place. It's a place where completely different ideas and cultures come together and clash in a very warm way. In a very warm-hearted way.