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

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

“It was one of those pictures that children are supposed to like but don't. Full of endearing little animals doing endearing things, you know?”

“He had a nasty feeling that that might be an idiotic thing to do, but he did it anyway, and sure enough it had turned out to be an idiotic thing to do. You live and learn. At any rate, you live.”

“Sorry, did I say something wrong?" said Marvin, dragging himself on regardless. "Pardon me for breathing, which I never do anyway so I don't know why I bother to say it, oh God I'm so depressed. Here's another one of those self-satisfied doors. Life! Don't talk to me about life.”

“Don't you understand that we need to be childish in order to understand? Only a child sees things with perfect clarity, because it hasn't developed all those filters which prevent us from seeing things that we don't expect to see.”

“And then, just when you think that you have experienced all the wonders that this world has to offer, you round a peak and suddenly think you're doing the whole thing over again, but this time on drugs.”