“It is a rare mind indeed that can render the hitherto non-existent blindingly obvious. The cry 'I could have thought of that' is a very popular and misleading one, for the fact is that they didn't, and a very significant and revealing fact it is too.”

“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.”

“Much to his annoyance, a thought popped into his mind. It was very clear and very distinct, and he had now come to recognize these thoughts for what they were. His instinct was to resist them.”

“Now it is such a bizarrely improbable coincidence that anything so mind-bogglingly useful could have evolved purely by chance that some thinkers have chosen to see it as the final and clinching proof of the non-existence of God.The argument goes something like this: "I refuse to prove that I exist,'" says God, "for proof denies faith, and without faith I am nothing.""But," says Man, "The Babel fish is a dead giveaway, isn't it? It could not have evolved by chance. It proves you exist, and so therefore, by your own arguments, you don't. QED.""Oh dear," says God, "I hadn't thought of that," and promptly vanishes in a puff of logic."Oh, that was easy," says Man, and for an encore goes on to prove that black is white and gets himself killed on the next zebra crossing.”

“The car shot forward straight into the circle of light, and suddenly Arthur had a fairly clear idea of what infinity looked like.It wasn’t infinity in fact. Infinity itself looks flat and uninteresting. Looking up into the night sky is looking into infinity—distance is incomprehensible and therefore meaningless. The chamber into which the aircar emerged was anything but infinite, it was just very very very big, so big that it gave the impression of infinity far better than infinity itself.”

“Just supposing," he said, "just supposing" --he didn't know what was coming next, so he thought he'd just sit back and listen--"that there was some extraordinary way in which you were very important to me, and that, though you didn't know it, I was very important to you, but it all went for nothing because we only had five miles and I was a stupid idiot at knowing how to say something very important to someone I've only just met and not crash into lorries a the same time, what would you say..." He paused, helplessly, and looked at her."I should do.”

“It is worth repeating at this point the theories that Ford had come up with, on his first encounter with human beings, to account for their peculiar habit of continually stating and restating the very very obvious, as in "It's a nice day," or "You're very tall," or "So this is it, we're going to die."His first theory was that if human beings didn't keep exercising their lips, their mouths probably shriveled up.After a few months of observation he had come up with a second theory, which was this--"If human beings don't keep exercising their lips, their brains start working.”