China is ruthlessly pragmatic. It supports North Korea for its own selfish interests. And I believe that China no longer considers us an ally. The current president, Xi Jinping, cultivates close relations with South Korea. He has never met with me, the leader of North Korea, something that the leader of China has always done. At the grand celebrations in Beijing two years ago commemorating the 70th anniversary of the end of World War II, he placed the president of Russia and the president of South Korea at his side. In North Korea, we pay a lot of attention to ceremonies and what they signal.

If a senator calls me up and asks me what should we do in Iraq, I'm happy to talk to him.

America's growth historically has been fueled mostly by investment, education, productivity, innovation and immigration. The one thing that doesn't seem to have anything to do with America's growth rate is a brutal work schedule.

Whenever someone says the word community, I want to reach for an oxygen mask.

What we see today is an American economy that has boomed because of policies and developments of the 1950s and '60s: the interstate-highway system, massive funding for science and technology, a public-education system that was the envy of the world and generous immigration policies.

If you listen to the political discourse in America today, you would think that all our problems have been caused by the Mexicans of the Chinese or the Muslims. The reality is that we have caused our own problems. Whatever has happened has been caused by isolating ourselves or blaming others.

One of the things that has been very difficult in Libya is the sense of uncertainty - the sense that they haven't actually finished the revolution, that there was still a great deal of uncertainty. That uncertainty has made Libya harder for business in terms of oil and other things as well.