We must dare to think 'unthinkable' thoughts. We must learn to explore all the options and possibilities that confront us in a complex and rapidly changing world.

This is regrettable indeed for a nation that aspires to teach democracy to other nations, because, as Burke said: "Example is the school of mankind, and they will learn at no other."

To criticize one's country is to do it a service.... Criticism, in short, is more than a right; it is an act of patriotism-a higher form of patriotism, I believe, than the familiar rituals and national adulation.

There is an inevitable divergence between the world as it is and the world as men perceive it.

It is a curiosity of human nature that lack of self-assurance seems to breed an exaggerated sense of power and mission.

As a conservative power, the United States has a vital interest in upholding and expanding the reign of law in international relations.

Of all the joint ventures in which we might engage, the most productive, in my view, is educational exchange. I have always had great difficulty-since the initiation of the Fulbright scholarships in 1946-in trying to find the words that would persuasively explain that educational exchange is not merely one of those nice but marginal activities in which we engage in international affairs, but rather, from the standpoint of future world peace and order, probably the most important and potentially rewarding of our foreign-policy activities.