We are going to expand enormously -- our economy, our consumption, over the years to come ... But the consequences of that on emissions are going to be severe unless we change direction.

I think social media is a revolutionary phenomenon all in itself.

I think it is vitally important to study History. If we are going to lead Britain safely into the future, it is essential that we understand our country's historical roots. If we can learn the lessons of the past, we will be able to avoid making mistakes in the future.

Repressive states are developing weapons that could cause destruction on a massive scale.

I think crime is a huge issue for people. If you were living in the poorest state, and you've got drug dealers at the end of the street, and your life's in misery, and you're afraid of your kids going out the door. I mean, the job of progressive politicians is to do something about that.

The kaleidoscope has been shaken. The pieces are in flux. Soon they will settle again. Before they do, let us re-order this world around us.

People always think American politics is very different, but usually it is a predictor of what happens in the politics elsewhere.