It shall be the policy of this nation to regard any nuclear missile launched from Cuba as an attack by the Soviet Union on the United States.

In a time of turbulence and change, it is more true than ever that knowledge is power.

There is, in addition to a courage with which men die; a courage by which men must live.

The effort to improve the conditions of man, however, is not a task for the few. It is the task of all nations-acting alone, acting in groups, acting in the United Nations, for plague and pestilence, plunder and pollution, the hazards of nature and the hunger of children are the foes of every nation. The earth, the sea and the air are the concern of every nation. And science, technology and education can be the ally of every nation.

Perhaps scientists have been the most international of all professions in their outlook... Every time you scientists make a major invention, we politicians have to invent a new institution to cope with it-and almost invariably, these days, it must be an international institution.

Above all, we are coming to understand that the arts incarnate the creativity of a free people.

Be aware of danger-but recognize the opportunity