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.

It startled him even more when just after he was awarded the Galactic Institute's Prize for Extreme Cleverness he got lynched by a rampaging mob of respectable physicists who had finally realized that the one thing they really couldn't stand was a smart-ass.

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.

...and the Universe, ... will explode later for your pleasure.

The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair.

The World Wide Web is the only thing I know of whose shortened form takes three times longer to say than what it's short for.

Space is unimaginably big.