...We now realize as we have never before our interdependence on each other; that we cannot merely take, but we must be willing to sacrifice for the good of a common discipline, because without such discipline, no progress is made, no leadership becomes effective.

Go for the moon. If you don't get it, you'll still be heading for a star. Happiness lies not in the mere possession of money; it lies in the joy of achievement, in the thrill of the creative effort.

Peace can endure only so long as humanity really insists upon it, and is willing to work for it and sacrifice for it.

A war of ideas can no more be won without books than a naval war can be won without ships. Books, like ships, have the toughest armor, the longest cruising range, and mount the most powerful guns.

The first twelve years are the hardest.

A program whose basic thesis is, not that the system of free enterprise for profit has failed in this generation, but that it has not yet been tried!

People acting together as a group can accomplish things which no individual acting alone could ever hope to bring about.