“There are all kinds of darkness, and all kinds of things can be found in them, imprisoned, banished, lost or hidden. Sometimes they escape. Sometimes they simply fall out. Sometimes they just can't take it any more.”

“Omens were all very well, but sometimes it would help if people just wrote things down.”

“There's a saying that all roads lead to Ankh-Morpork. And it's wrong. All roads lead away from Ankh-Morpork, but sometimes people just walk along them the wrong way.”

“Sometimes the truth is arrived at by adding all the little lies together and deducting them from the totality of what is known.”

“They didn't know why these things were funny. Sometimes you laugh because you've got no more room for crying. Sometimes you laugh because table manners on a beach are funny. And sometimes you laugh because you're alive, when you really shouldn't be.”

“Sometimes it's better to light a flamethrower than curse the darkness.”

“Sometimes you had to take a look at yourself and then look away.”