All field agents have some cowboy in them – even the ones from New York.

The only real difference between a wise man and a fool, Moore knew, was that the wise man tended to make more serious mistakes—and only because no one trusted a fool with really crucial decisions; only the wise had the opportunity to lose battles, or nations.

I haven't got any fan mail from Osama bin Laden. I have no reason to believe he reads my stuff I'll never decide for commercial reasons to put something in that endangers our national security. You just can't do that.

I think it's an intellectual duty for a person who lives in a free society to read material not only with which you agree, but with which you disagree. Because every so often somebody you think is wrong will actually turn out to be right.

Information, knowledge, is power. If you can control information, you can control people.

In the Soviet Union it was illegal to take a photograph of a train station. Look what happened to them. They tried to classify everything.

There is more to military units than hardware. There is the character of the unit's personnel: their strengths, experience, and knowledge, their ability to get along and work together amid the horrors of the battlefield. There is an almost undefinable quality. That quality is the Marine Corps' secret weapon. Their edge. That quality is their ethos.