Assumptions are what we don't know we are making

Why are people born? Why do they die? Why do they want to spend so much of the intervening time wearing digital watches?

We notice things that don't work. We don't notice things that do. We notice computers, we don't notice pennies. We notice e-book readers, we don't notice books.

The idea was fantastically, wildly improbable. But like most fantastically, wildly improbable ideas it was at least as worthy of consideration as a more mundane one to which the facts had been strenuously bent to fit.

I am terribly proud of-I was born in Cambridge in 1952 and my initials are DNA!

The waiter approached. 'Would you like to see the menu?' he said. 'Or would you like to meet the Dish of the Day?' 'Huh?' said Ford. 'Huh?' said Arthur. 'Huh?' said Trillian. 'That’s cool,' said Zaphod. 'We'll meet the meat.

If somebody thinks they're a hedgehog, presumably you just give 'em a mirror and a few pictures of hedgehogs and tell them to sort it out for themselves.