The members of the Islamic Staye have cut the throat of an American on television. This is an insult to the United States, which requires that we demonstrate that this is not an act that is free. I would strongly favor a strong attack on ISIS for a period that is related to the murder of the American.

You should not go to war for the privilege of withdrawal. You need to define your objective and the outcome, and it cannot be the removal of one man.

The emigration of Jews from the Soviet Union is not an objective of American foreign policy. And if they put Jews into gas chambers in the Soviet Union, it is not an American concern. Maybe a humanitarian concern.

I think a resumption of the Cold War would be a historic tragedy. If a conflict is avoidable, on a basis reflecting morality and security, one should try to avoid it.

Any international system must have two key elements for it to work. One, it has to have a certain equilibrium of power that makes overthrowing the system difficult and costly. Secondly, it has to have a sense of legitimacy.

I have learned, as I wrote, that history must be discovered, not declared. It's an admission that one grows in life.

China is a one party state. Sooner or later China will get to the point when the new social classes, which have emerged thanks to economic success, will have to be integrated into the political system. There is no guarantee that this process will run smoothly.