The impossible often has a kind of integrity to it which the merely improbable lacks. How often have you been presented with an apparently rational explanation of something that works in all respects other than one, which is just that it is hopelessly improbable? Your instinct is to say, 'Yes, but he or she simply wouldn't do that.

The mere thought hadn't even begun to speculate about the merest possibility of crossing my mind.

"What's up?" "I don't know," said Marvin, "I've never been there."

But what about the End of the Universe? We'll miss the big moment." I've seen it. It's rubbish," said Zaphod,"nothing but a gnab gib." A what?" Opposite of a big bang. Come on, let's get zappy.

In many of the more relaxed civilizations on the Outer Eastern Rim of the Galaxy, the Hitch-Hiker's Guide has already supplanted the great Encyclopaedia Galactica as the standard repository of all knowledge and wisdom, for though it has many omissions and contains much that is apocryphal, or at least wildly inaccurate, it scores over the older, more pedestrian work in two important respects. First, it is slightly cheaper; and secondly it has the words DON'T PANIC inscribed in large friendly letters on its cover.

Life... is like a grapefruit. Well, it's sort of orangey-yellow and dimpled on the outside, wet and squidgy in the middle. It's got pips inside, too. Oh, and some people have half a one for breakfast.

He would have felt safe if alongside the Dentrassis' underwear, the piles of Sqornshellous mattresses and the man from Betelgeuse holding up a small yellow fish and offering to put it in his ear he had been able to see just a small packet of cornflakes. But he couldn't, and he didn't feel safe.