It's not the fall that kills you; it's the sudden stop at the end.

Ford carried on counting quietly. This is about the most aggressive thing you can do to a computer, the equivalent of going up to a human being and saying "Blood...blood...blood...blood...

And all dared to brave unknown terrors, to do mighty deeds, to boldly split infinitives that no man had split before--and thus was the Empire forged.

Why' is the only question that bothers people enough to have an entire letter of the alphabet named after it. The alphabet does not go 'A B C D What? When? How?' but it does go 'V W X Why? Z.

So what do we do if we get bitten by something deadly?' I asked. He looked at me as if I were stupid. 'You die, of course. That's what deadly means.

Trillian had come to suspect that the main reason [Zaphood] had had such a wild and successful life was that he never really understood the significance of anything he did.

It's good to leave your room super-messy when you're away. Whoever tries to break into your room will thought it has already been ransacked.