Every civilization that has ever existed has ultimately collapsed.

I don't know what happens in the next years. But I cannot now design a policy in which we try to keep China from developing, because in some years, if they develop, they might be rich enough to challenge us, and adopt the principle that we will hold down any state that might in the future become strong. That would make us a world empire for which we wouldn't have the talents or the convictions.

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.

Statesmen think in terms of history and view society as an organism. Prophets are different since they believe absolute aims can be achieved in the foreseeable future. More people have been killed by crusaders than by statesmen.

Diplomats operate through deadlock, which is the way by which two sides can test each other's determination. Even if they have egos for it few heads of government have the time to resolve stalemates, their meetings are too short and the demands of protocol too heavy.

Power is the great aphrodisiac.

One of the hardest things for the president is to distinguish the routine issues that come through from the essential issues that affect the long term, and not to let himself get sucked into the battles of the bureaucracy for marginal issues, and to keep them focused and to keep his mind clear on what the fundamental things are that he has to accomplish.