An alliance is like a chain. It is not made stronger by adding weak links to it. A great power like the United States gains no advantage and it loses prestige by offering, indeed peddling, its alliances to all and sundry. An alliance should be hard diplomatic currency, valuable and hard to get, and not inflationary paper from the mimeograph machine in the State Department.

Industry is a better horse to ride than genius.

We are all captives of the picture in our head - our belief that the world we have experienced is the world that really exists.

At the core of every moral code there is a picture of human nature, a map of the universe, and a version of history. To human nature (of the sort conceived), in a universe (of the kind imagined), after a history (so understood), the rules of the code apply.

The public must be put in its place, so that it may exercise its own powers, but no less and perhaps even more, so that each of us may live free of the trampling and the roar of a bewildered herd.

The thinker dies, but his thoughts are beyond the reach of destruction. Men are mortal; but ideas are immortal.

The best servants of the people, like the best valets, must whisper unpleasant truths in the master's ear. It is the court fool, not the foolish courtier, whom the king can least afford to lose.