Every one of our thoughts needs freedom and space in order to bloom and express beauty.

For NASA, space is still a high priority.

The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.

Space, like Switzerland, should be neutral.

Space is the stature of God.

The world would be a safer place, If someone had a plan, Before exploring outer space, To find the inner man.

In curved Einsteinian space we are at all times, technically, looking at the back of our own head.

There is hopeful symbolism in the fact that flags do not wave in a vacuum.

I just don't think the moon is going to be an adequate substitute for the fact that we haven't addressed ourselves to clearing up the slums.

One small step for (a) man, one giant leap for mankind.

I suppose the one quality in astronauts more powerful than any other is curiosity. They have to get some place nobody's ever been before.

The eagle has landed.

Space is really big-REALLY big.

This is one small step for a man, one giant leap for mankind.

The eternal silence of these infinite spaces frightens me.

Space flights are merely an escape, a fleeing away from oneself, because it is easier to go to Mars or to the moon than it is to penetrate one's own being.

The secret of our success on planet Earth is space. Lots of it. Our solar system is a tiny island of activity in an ocean of emptiness.

Everything in space obeys the laws of physics. If you know these laws, and obey them, space will treat you kindly. And don't tell me man doesn't belong out there. Man belongs wherever he wants to go-and he'll do plenty well when he gets there.

If all the stars and galaxies in the universe today were smoothed out into a uniform sea of atoms, there would only be about one atom in every cubic meter of space.

We can lick gravity, but sometimes the paperwork is overwhelming.