Oh, for a pin that would puncture pretension!

And in man is a three-pound brain which, as far as we know, is the most complex and orderly arrangement of matter in the universe.

Any planet is 'Earth' to those that live on it.

We're forever teetering on the brink of the unknowable, and trying to understand what can't be understood.

They won't listen. Do you know why? Because they have certain fixed notions about the past. Any change would be blasphemy in their eyes, even if it were the truth. They don't want the truth; they want their traditions.

It's just science fiction so it's allowed to be silly, and childish, and stupid. It's just science fiction, so it doesn't have to make sense. It's just science fiction, so you must ask nothing more of it than loud noises and flashing lights.

Self-education is, I firmly believe, the only kind of education there is.