To find anything comparable with our forthcoming ventures into space, we must go back far beyond Columbus, far beyond Odysseus-far, indeed, beyond the first ape-man. We must contemplate the moment, now irrevocably lost in the mists of time, when the ancestor off all of us came crawling out of the sea.

We stand now at the turning point between two eras. Behind us is a past to which we can never return... The coming of the rocket brought to an end a million years of isolation... the childhood of our race was over and history as we know it began.

Any technology distinguishable from magic is insufficiently advanced.

One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships.

That's one of those meaningless and unanswerable questions the mind keeps returning to endlessly, like the tongue exploring a broken tooth.

We stand now at the turning point between two eras. Behind us is a past to which we can never return...

I have a fantasy where Ted Turner is elected President but refuses because he doesn't want to give up power.