The hidden hand of the market will never work without a hidden fist -- McDonald's cannot flourish without McDonnell Douglas, the builder of the F-15. And the hidden fist that keeps the world safe for Silicon Valley's technologies is called the United States Army, Air Force, Navy and Marine Corps.

All one needs to do is just to go to any hospital in America and see the number of Pakistani or Indian or Lebanese, or Syrian, or Egyptian doctors, who are either first generation or themselves immigrants, to know, and I'm a big believer - brains are distributed evenly around the world. What aren't distributed evenly are opportunities, stable government, educational institutions, etc.

The Arab world had a big problem of frankly venal elites. That is why these revolutions happen, because people didn't think the opportunities were being shared fairly.

Pessimists are usually right and optimists are usually wrong but all the great changes have been accomplished by optimists.

Geopolitics is all about leverage. We cannot make ourselves safer abroad unless we change our behavior at home.

The unemployment rate today for people with our-year college degrees is 4.1%, which is almost none. That's people switching jobs basically. That tells you that education is the only way up and the only way out. If that is the fact, then we've got to get more of it for more people.

What is al Qaeda? It's an open source religious political movement that works off the global supply chain.