The moon buggy is lighter in space because there's less gravity there.

That's no moon. It's a space station.

The greatest fallout of the space program, ... was not the close-up view of the moon, but a look at spaceship Earth from afar. For the first time in the history of humanity, we were able to see our planet for what it really is.

We send space shuttles to the moon and Mars but we know so little about our own planet.

We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard.

[Address at Rice University, September 12 1962]

Man is now able to soar into outer space and reach up to the moon; but he is not moral enough to live at peace with his neighbor!