But remember that the Captain belongs to the most dangerous enemy to truth and freedom, the solid unmoving cattle of the majority

Fantasies are things that can't happen, and science fiction is about things that can happen.

Man has always been half-monster, half-dreamer.

Do your own bit of saving, and if you drown, at least die knowing you were headed for shore.

In our time the search for extraterrestrial life will eventually change our laws, our religions, our philosophies, our arts, our recreations, as well as our sciences. Space, the mirror, waits for life to come look for itself there.

I did what most writers do at their beginnings: emulated my elders, imitated my peers, thus turning away from any possibility of discovering truths beneath my skin and behind my eye.

Science Fiction has always been and will always be a fable teacher of morality.