There were some things that only time could cure. Evil men could be destroyed, but nothing could be done with good men who were deluded.

I have never grown up, but I will never stop growing.

The moon is the first milestone on the road to the stars.

Space can be mapped and crossed and occupied without definable limit; but it can never be conquered.

A faith that cannot survive collision with the truth is not worth many regrets.

If man can live in Manhattan, he can live anywhere.

Any sufficiently advanced technology is indistinguishable from magic.