There is a noticeable general difference between the sciences and mathematics on the one hand, and the humanities and social sciences on the other. It's a first approximation, but one that is real. In the former, the factors of integrity tend to dominate more over the factors of ideology. It's not that scientists are more honest people. It's just that nature is a harsh taskmaster. You can lie or distort the story of the French Revolution as long as you like, and nothing will happen. Propose a false theory in chemistry, and it'll be refuted tomorrow.

Concision is a technique of propaganda. It ensures you cannot do anything except repeat clichés, the standard doctrine, or sound like a lunatic.

On humanitarian intervention in general, I guess my view is not unlike the view that was attributed to Gandhi, accurately or not, when he was supposedly asked what he thought about western civilization. He is supposed to have said that he thought it would be a good idea. Similarly, humanitarian intervention would be a good idea, in principle.

I happened to go to a school when I was a kid and that's all we did, pursue our own interests. It was kind of structured so you ended up knowing everything you were supposed to know, arithmetic, Latin, whatever it was. But almost always it was under your own initiative.

Public opinion can be influential, the media can be influential.

Michael Flynn, national security adviser, [his reaction] to the Iranian missile test the other day was very frightening. Now the missile test is ill-advised, they shouldn't have done it. But it's not in violation of international law or international agreements. They shouldn't have done it. His reaction suggested maybe we're going to go to war in retaliation.

The United States invaded Iraq to gain control of one of the major sources of the world's energy.