They wouldn’t even lift a finger to save their own grandmothers from the Ravenous Bugblatter Beast of Traal without orders signed in triplicate, sent in, sent back, queried, lost, found, subjected to public inquiry, lost again, and finally buried in soft peat for three months and recycled as firelighters.

Anything that thinks logically can be fooled by something else that thinks at least as logically as it does.

He sniggered. He didn't like to think of himself as the sort of person who giggled or sniggered, but he had to admit that he had been giggling and sniggering almost continuously for well over half an hour now.

I think all cats are wild. They only act tame if there´s a saucer of milk in it for them.

and we’ll be saying a big hello to all intelligent life forms everywhere … and to everyone else out there, the secret is to bang the rocks together, guys.

Being virtually killed by a virtual laser in a virtual space is just as effective as the real thing, because you are as dead as you think you are.

Marvin started his ironical humming again. Zaphod hit him and he shut up.