“Death is meaningless unless it happens to someone you know.”

“You resent death. You regret death. But as for your own life, you know perfectly well that no one can threaten it at all. Death is something that happens to someone else.”

“nobody means to get carried away in mediocrity, but it happens, it happens unless you think about everything you do, unless you make every choice the best one you know how to make.”

“Never stick your hand out and let someone squirt something into it unless you know what it is.”

“You may never know what type of person someone is unless they are given opportunities to violate moral or ethical codes.”

“There is no point in erecting a structure,” said Muzzlehatch, taking no notice of Titus’s question, “unless someone else pulls it down. There is no value in a rule until it is broken. There is nothing in life unless there is death at the back of it. Death, dear boy, leaning over the edge of the world and grinning like a boneyard.”

“Unless you love someone, nothing else makes sense.”

“Unless you do the right things, the right things will not happen to you.”

“It's funny how you can think you know someone pretty well, and then something happens or they do something that makes you understand that you didn't really know them at all.”

“It is impossible for someone to lie unless he thinks he knows the truth. Producing bullshit requires no such conviction.”