The great revolution in the history of man, past, present and future, is the revolution of those determined to be free.

I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth. No single space project...will be more exciting, or more impressive to mankind, or more important...and none will be so difficult or expensive to accomplish.

Moral courage is more a rare commodity than bravery in a battle or great intelligence.

In serving his vision of the truth, the artist best serves his nation.

I speak of peace, therefore, as the necessary rational end of rational men. I realize the pursuit of peace is not as dramatic as the pursuit of war... But we have no more urgent task.

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.

The greater our knowledge increases the more our ignorance unfolds.