What really matters is getting new people in. The constitutional changes matter, but the thing that the party mustn't do is turn in on itself and think the thing we've got to do is fix our plumbing. The thing we've got to do is get new people in.

All war aims for impunity.

Inequality is not just an issue between individuals, between classes, between regions. It's between urban and rural.

The wars of the future will be fought by computer technicians and by lawyers and high-altitude specialists, and that may mean war will be increasingly abstract, hard to think about and hard to control.

There are all kinds of different forms of public service, but there's no form of public service that can make more difference for more people than partisan political activity.

If I am not elected, I imagine that I will ask Harvard to let me back.

We must not lose sight of the fundamental issue of policy which is that people who come to the country on visa status must never be abused.