“Bringing about Armageddon can be dangerous. Do not attempt it in your own home.”

“In fact, if there were such a thing as an international thieving contest, Ankh-Morpork would bring home the trophy and probably everyone's wallets.”

“If there were such a thing as an inter-city thieving contest, Ankh-Morpork would bring home the trophy and probably everyone’s wallets.”

“They suffered from the terrible delusion that something could be done. They seemed prepared to make the world the way they wanted it or die in the attempt, and the trouble with dying in the attempt was that you died in the attempt.”

“The important thing about having lots of things to remember is that you’ve got to go somewhere afterwards where you can remember them, you see? You’ve got to stop. You haven’t really been anywhere until you’ve got back home.”

“Take it from me, whenever you see a bunch of buggers puttering around talking about truth and beauty and the best way of attacking Ethics, you can bet your sandals it's all because dozens of other poor buggers are doing all the real work around the place.”

“A witch who is bored might do ANYTHING.People said things like 'we had to make our own amusements in those days' as if this signified some kind of moral worth, and perhaps it did, but the last thing you wanted a witch to do was get bored and start making her own amusements, because witches sometimes had famously erratic ideas about what was amusing.”