“Ow! My brains!”

“I don't know what this great thing I'm meant to be doing is, and it looks to me as if I was supposed not to know. And I resent that, right? "The old me knew. The old me cared. Fine, so far so good. Except that the old me cared so much that he actually got inside his own brain--my own brain--and locked off the bits that knew and cared, because if I knew and cared I wouldn't be able to do it. [...] "But this former self of mine killed himself off, didn't he, by changing my brain? Okay, that was his choice. This new me has its own choices to make, and by a strange coincidence those choices involve not knowing and not caring about this big number, whatever it is. That's what he wanted, that's what he got. "Except this old self of mine tired to leave himself in control, leaving orders for me in the bit of my brain he locked off. Well, I don't want to know, and I don't want to hear them. That's my choice. I'm not going to be anybody's puppet, particularly not my own. [...] "The old me is dead! [...] Killed himself! The dead shouldn't hang about trying t0 interfere with the living.”

“If they don’t keep exercising their lips, he thought, their brains start working.”

“His mouth started to speak, but his brain decided it hadn't got anything to say yet and shut it again. His brain then started to contend with the problem of what his eyes told it they were looking at, but in doing so relinquished control of the mouth which promptly fell open again. Once more gathering up the jaw, his brain lost control of his left hand which then wandered around in an aimless fashion. For a second or so the brain tried to catch the left hand without letting go of the mouth and simultaneously tried to think about what was buried in the ice, which is probably why the legs went and Arthur dropped restfully to the ground.”

“It was his subconscious which told him this---that infuriating part of a person's brain which never responds to interrogation, merely gives little meaningful nudges and then sits humming quietly to itself, saying nothing.”

“To Trin Tragula's horror, the shock completely annihilated her brain; but to his satisfaction he realized that he had proved conclusively that if life is going to exist in a Universe of this size, then the one thing it cannot afford to have is a sense of proportion.”

“The Hitch-Hiker's Guide to the Galaxy also mentions alcohol. It says that the best drink in existence is the Pan Galactic Gargle Blaster, the effect of which is like having your brains smashed out with a slice of lemon wrapped round a large gold brick.”