As we express our gratitude, we must never forget that the highest appreciation is not to utter words but to live by them.

Modern cynics and skeptics see no harm in paying those to whom they entrust the minds of their children a smaller wage than is paid to those to whom they entrust the care of their plumbing.

We want students and graduates to recognize that America's colleges have not been built up, have not been developed, merely to advance the private economic interest of its graduates. They have a greater purpose in mind. No college graduate can go out from any college today without being a man of his Nation and a man of his time, without pursuing in his own life, not only his private interest, but the welfare of his country.

If you look throughout human history the central epiphany of every religious tradition always occurs in the wilderness.

One person can make a difference and everyone should try.

Life is never easy. There is work to be done and obligations to be met – obligations to truth, to justice, and to liberty.

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 hin safely to the earth.

The problems of the world cannot possibly be solved by skeptics or cynics whose horizons are limited by obvious realities.

If we cannot end our differences at least we can make the world safe for diversity.

Mankind must put an end to war, before war puts an end to mankind.