It has always struck me as the world's great fortune that the two great superpowers were the United States and the Soviet Union, who managed the Cold War with meticulous care in retrospect. Imagine the European diplomats of 1914 or 1938 armed with nuclear weapons. It is easy to believe they would not have been as cautious.

The United State has a net worth against which our debt is a joke ... we wrote in 2008 the United States is going to come out of this recession fast. The Europeans are going to fragment. The Chinese are going to be cremated. Why could we come out of it? Why has all economic theory been proven wrong? Because we're rich and we could afford it.

The poets think about war more than the social scientists.

I'm not a journalist. So I didn't down and let Assad charm me. I didn't walk away and say "my god he's got an Apple computer and he really likes Beyonce so he must be a liberal."

There is no difference in a country between military, economic, and political affairs. It's useful for Business Insider to divide things that way. That's useful for a college program. But a country is a country. How do you understand China's economy without China's army? If you take these all into account you're ready to explain a question like, "How come the US doesn't have a debt problem?"

In a way, we can have a much easier discussion about the future of technology than we can about why a young man kills another man in a war.

Recent presidents have gone off on ad hoc adventures. They have set unattainable goal because they have framed the issue incorrectly, as they believed their own rhetoric.