Revolutionaries are rarely motivated primarily by material considerations-though the illusion that they are persists in the West.

With respect to the relationship between nuclear weapons and the advent of détente, one has to consider two things. One, the nature of nuclear weapons in themselves, and secondly, the advent of nuclear parity.

There are some people who think that at some time in the future, China may challenge us for supremacy in the Pacific, and therefore, what do we do today to prevent that? And you, of course, will say that we will try to thwart any economic progress in China. If we engaged in such a policy, we would turn a billion-plus people into nationalist opponents of the United States.

Every civilization that has ever existed has ultimately collapsed. History is a tale of efforts that failed, or aspirations that weren’t realized. So, as a historian, one has to live with a sense of the inevitability of tragedy.

To revolutionaries the significant reality is the world which they are fighting to bring about, not the world they are fighting to overcome.

The problem is Russia is a country that has lost 300 years of its history, in terms of most of what was part of the Russian Empire in Europe, towards Europe, since Peter the Great, has been the territory that is no longer under Russian rule.

The Chinese military budget today is officially listed as, I think, about $15 billion. But even if you double it, that's only a tenth of ours. So the possibility of China challenging the United States for the next ten years over the Pacific is next to zero. There could be a conflict between us and China over Taiwan, but I think that, too, will not occur with the proper policies on both sides.