"Nothing travels faster than the speed of light, with the possible exception of bad news, which obeys its own special laws."

"Time is an illusion. Lunchtime doubly so."

"Would it save you a lot of time if I just gave up and went mad now?"

"Don't Panic."

"The Guide says there is an art to flying", said Ford, "or rather a knack. The knack lies in learning how to throw yourself at the ground and miss."

"The fact that we live at the bottom of a deep gravity well, on the surface of a gas covered planet going around a nuclear fireball 90 million miles away and think this to be normal is obviously some indication of how skewed our perspective tends to be."

"There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened."

"I refuse to answer that question on the grounds that I don't know the answer"

"The story so far:In the beginning the Universe was created.This has made a lot of people very angry and been widely regarded as a bad move."

"I love deadlines. I love the whooshing noise they make as they go by."

"Can't stand all these poisonous creatures, all these snakes and insects and fish and things. Wretched things, biting everybody. And then people expect me to tell them what to do about it. I'll tell them what to do. Don't get bitten in the first place. (quoting Dr. Struan Sutherland)"

"Life is wasted on the living."

"He stood up straight and looked the world squarely in the fields and hills. To add weight to his words he stuck the rabbit bone in his hair. He spread his arm out wide. "I will go mad!" he annouced."

"Exactly!" said Deep Thought. "So once you do know what the question actually is, you'll know what the answer means."

"Life... is like a grapefruit. Well, it's sort of orangey-yellow and dimpled on the outside, wet and squidgy in the middle. It's got pips inside, too. Oh, and some people have half a one for breakfast."

"We demand rigidly defined areas of doubt and uncertainty!"

"All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others."

"We are stuck with technology when what we really want is just stuff that works."

"This must be Thursday,' said Arthur to himself, sinking low over his beer. 'I never could get the hang of Thursdays."

"A learning experience is one of those things that says, 'You know that thing you just did? Don't do that."

"I may not have gone where I intended to go, but I think I have ended up where I needed to be."

"There's always a moment when you start to fall out of love, whether it's with a person or an idea or a cause, even if it's one you only narrate to yourself years after the event: a tiny thing, a wrong word, a false note, which means that things can never be quite the same again."