Ghastly," continued Marvin, "it all is. Absolutely ghastly. Just don't even talk about it. Look at this door," he said, stepping through it. The irony circuits cut in to his voice modulator as he mimicked the style of the sales brochure. " 'All the doors in his spaceship have a cheerful and sunny disposition. It is their pleasure to open for you, and their satisfaction to close again with the knowledge of a job well done.' " As the door closed behind them it became apparent that it did indeed have a satisfied sighlike quality to it. "Hummmmmmmyummmmmmmah!" it said.

My doctor says that I have a malformed public-duty gland and a natural deficiency in moral fibre and that I am therefore excused from saving universes.

See first, think later, then test. But always see first. Otherwise you will only see what you were expecting. Most scientists forget that.

Marvin trudged on down the corridor, still moaning. "...and then of course I've got this terrible pain in all the diodes down my left hand side..." "No?" said Arthur grimly as he walked along beside him. "Really?" "Oh yes," said Marvin, "I mean I've asked for them to be replaced but no one ever listens." "I can imagine.

Technology is a word that describes something that doesn't work yet.

The difference between us and a computer is that, the computer is blindingly stupid, but it is capable of being stupid many, many million times a second.

Anyone who is capable of getting themselves made President should on no account be allowed to do the job.