Douglas Adams

"All the doors in this 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."

The fabulously beautiful planet Bethselamin is now so worried about the cumulative erosion by ten billion visiting tourists a year that any net imbalance between the amount you eat and the amount you excrete while on the planet is surgically removed from your body weight when you leave: so every time you go to the lavatory there it is vitally important to get a receipt.

There was a terrible ghastly silence.

There was a terrible ghastly noise.

There was a terrible ghastly silence.

[S]uch generators were often used to break the ice at parties by making all the molecules in the hostess's undergarments leap simultaneously one foot to the left, in accordance with the Theory of Indeterminacy. Many respectable physicists said that they weren't going to stand for this, partly because it was a debasement of science, but mostly because they didn't get invited to those sorts of parties.

"But the plans were on display . . ."

"On display? I eventually had to go down to the cellar to find them."

"That's the display department."

"With a torch."

"Ah, well the lights had probably gone."

"So had the stairs."

"But look, you found the notice, didn't you?"

"Yes," said Arthur, "yes I did. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying Beware of the Leopard."

“First I’ve heard of it,” said Arthur, “why’s it got to be built?”

Mr. Prosser shook his finger at him for a bit, then stopped and put it away again.

“What do you mean, why’s it got to be built?” he said. “It’s a bypass. You’ve got to build bypasses.”

Bypasses are devices that allow some people to dash from point A to point B very fast while other people dash from point B to point A very fast. People living at point C, being a point directly in between, are often to wonder what’s so great about point A that so many people from point B are so keen to get there, and what’s so great about point B that so many people from point A are so keen to get there. They often wish that people would just once and for all work out where the hell they wanted to be.

"If there's anything more important than my ego around, I want it caught and shot now."

"The mere thought," growled Mr. Prosser, "hadn't even begun to speculate," he continued, settling himself back, "about the merest possibility of crossing my mind."

"Five to one against and falling..." she said, "four to one against and falling...three to one...two...one...probability factor of one to one...we have normality, I repeat we have normality." She turned her microphone off—then turned it back on, with a slight smile and continued: "Anything you still can’t cope with is therefore your own problem."

One of the things Ford Prefect had always found hardest to understand about humans was their habit of continually stating and repeating the very very obvious, as in It's a nice day, or You're very tall, or Oh dear you seem to have fallen down a thirty-foot well, are you alright? At first Ford had formed a theory to account for this strange behaviour. If human beings don't keep exercising their lips, he thought, their mouths probably seize up. After a few months' consideration and observation he abandoned this theory in favour of a new one. If they don't keep on exercising their lips, he thought, their brains start working. After a while he abandoned this one as well as being obstructively cynical.

"You know," said Arthur, "it's at times like this, when I'm trapped in a Vogon airlock with a man from Betelgeuse, and about to die of asphyxiation in deep space that I really wish I'd listened to what my mother told me when I was young."

"Why, what did she tell you?"

"I don't know, I didn't listen."

More importantly, a towel has immense psychological value. For some reason, if a strag (strag: nonhitchhiker) discovers that a hitchhiker has his towel with him, he will automatically assume that he is also in possession of a toothbrush, washcloth, soap, tin of biscuits, flask, compass, map, ball of string, gnat spray, wet-weather gear, space suit etc., etc. Furthermore, the strag will then happily lend the hitchhiker any of these or a dozen other items that the hitchhiker might have accidentally "lost.". What the strag will think is that any man that can hitch the length and breadth of the Galaxy, rough it, slum it, struggle against terrible odds, win through and still know where his towel is, is clearly a man to be reckoned with.