“Is it possible he should know what he is, and be that he is?”

“Reasoning led him into doubt and kept him from seeing what he should and should not do. Yet when he did not think, but lived, he constantly felt in his soul the presence of an infallible judge who decided which of two possible actions was better and which was worse; and whenever he did not act as he should, he felt it at once.So he lived, not knowing and not seeing any possibility of knowing what he was and why he was living in the world, tormented by this ignorance to such a degree that he feared suicide, and at the same time firmly laying down his own particular, definite path in life.”

“The writer probably knows what he meant when he wrote a book, but he should immediately forget what he meant when he's written it.”

“Goosnargh," said Ford Prefect, which was a special Betelgeusian word he used when he knew he should say something but didn't know what it should be.”

“A customer facing crucial decisions: What should I wipe myself with? What should I brush with? His personal hygiene was deteriorating rapidly as he stared at the rows of possibilities, sweating profusely. Would he ever bathe again?”

“I do not know how he even managed to do what he did. He should not have been able to, but he did. He defended my home. Me. Himself. Us.”