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.

We can have faith in the future only if we have faith in ourselves.

You know nothing for sure...except the fact that you know nothing for sure.

It is in the American tradition to stand up for one's rights--even if the new way to stand up for one's rights is to sit down.

Those who make peaceful revolution impossible will make violent revolution inevitable.

The world was not meant to be a prison in which man awaits his execution.

The credit of success is claimed by all, while a disaster is attributed to one alone.