The absence of alternatives clears the mind marvelously.

A leader does not deserve the name unless he is willing occasionally to stand alone.

It is not often that nations learn from the past even rarer that they draw the correct conclusions from it. For the lessons of historical experience, as of personal experience, are contingent. They teach the consequences of certain actions, but they cannot force a recognition of comparable situations.

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.

I know Hillary Clinton as a person. And as a personal friend, I would say yes, she'd be a good president. But she'd put me under a great conflict of interest if she were a candidate because I intend to support the Republicans.

You become a superpower by being strong but also by being wise and by being farsighted. But no state is strong or wise enough to create a world order alone.

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.