“Human beings have always preferred common sense to logic.”

“The thing about late-night cookery was that it made sense at the time. It always had some logic behind it. It just wasn’t the kind of logic you’d use around midday.”

“...logic is only a way of being ignorant by numbers.”

“His mind worked fast, flying in emergency supplies of common sense, as human minds do, to construct a huge anchor in sanity and prove that what happened hadn't really happened and, if it had happened, hadn't happened much.”

“The conversation of human beings seldom interested him, but it crossed his mind that the males and females always got along best when neither actually listened fully to what the other one was saying.”

“The fact is that camels are far more intelligent than dolphins. They are so much brighter that they soon realised that the most prudent thing any intelligent animal can do, if it would prefer its descendants not to spend a lot of time on a slab with electrodes clamped to their brains or sticking mines on the bottom of ships or being patronized rigid by zoologists, is to make bloody certain humans don't find out about it. So they long ago plumped for a lifestyle that, in return for a certain amount of porterage and being prodded with sticks, allowed them adequate food and grooming and the chance to spit in a human's eye and get away with it.”

“HUMAN BEINGS MAKE LIFE SO INTERESTING. DO YOU KNOW, THAT IN A UNIVERSE SO FULL OF WONDERS, THEY HAVE MANAGED TO INVENT BOREDOM. (Death)”