Just because something is a metaphor doesn't mean it can't be real.

Nothing I can say or devise, and nothing anybody else can say or devise, is going to be perfect.

This is space. It's sometimes called the final frontier. (Except that of course you can't have a final frontier, because there'd be nothing for it to be a frontier to, but as frontiers go, it's pretty penultimate . . .)

The pamphlet was very patriotic. That is, it talked about killing foreigners.

But of course, what the eagle does not realize is that it is participating in a very crude form of natural selection.One day a tortoise will learn how to fly.

If he'd been a hero, he would have taken the opportunity to say, "That's what I call sorted!" Since he wasn't a hero, he threw up.

Legends don't have to make sense. They just have to be beautiful. Or at least interesting.