Leaders are responsible not for running public opinion polls but for the consequences of their actions.

I am being frank about myself in this book. I tell of my first mistake on page 850.

I see the future of China as growth. I think that historically China has often gone through periods of consolidation, and then periods of sort of weakening central authority. They undoubtedly face tremendous challenges.

American politics are normally a result of pragmatic and not philosophical reasoning. No one in Washington has said we now prefer multilateralism.

If the six-nation forums dealing with Iran and North Korea suffer comparable failures, the consequence will be a world of unchecked proliferation, not controlled by either governing principles or functioning institutions. A modern, strong, peaceful Iran could become a pillar of stability and progress in the region. This cannot happen unless Iran's leaders decide whether they are representing a cause or a nation - whether their basic motivation is crusading or international cooperation. The goal of the diplomacy of the Six should be to oblige Iran to confront this choice.

The superpowers often behave like two heavily armed blind men feeling their way around a room, each believing himself in mortal peril from the other, whom he assumes to have perfect vision. Each side should know that frequently uncertainty, compromise, and incoherence are the essence of policymaking. Yet each tends to ascribe to the other a consistency, foresight, and coherence that its own experience belies. Of course, over time, even two armed blind men can do enormous damage to each other, not to speak of the room.

When I first saw China, there were no automobiles. There were no supermarkets. There were no high-rise buildings. There were no consumer goods. There were no restaurants that were at least accessible that foreigners could see. It was a Stalinist society, and a very poor Stalinist society. So the economic system has totally changed, and the private sector in the economic system is now the dominant sector. It didn't exist at all as late as 1979.