As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them.
The rights of every man are diminished when the rights of one man are threatened.
Let us never negotiate out of fear. But let us never fear to negotiate.
[Inaugural Address, January 20 1961]
Do not pray for easy lives. Pray to be stronger men.
[Quoting Reverend Phillips Brooks, during Remarks at Presidential Prayer Breakfast, February 7 1963]
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
Children are the world's most valuable resource and its best hope for the future.
Our progress as a nation can be not swifter than our progress in education.
Libraries should be open to all - except the censor.
[Response to questionnaire in Saturday Review, October 29 1960]
Ask not what your country can do for you; ask what you can do for your country.
Time and the world do not stand still. Change is the law of life.
Mankind must put an end to war - or war will put an end to mankind.
[Address before the United Nations, September 25 1961]