On the Disc, the Gods aren't so much worshipped, as they are blamed.

You’d better tell me what you know, toad,” said Tiffany. “Miss Tick isn’t here. I am.” “Another world is colliding with this one,” said the toad. “There. Happy now? That’s what Miss Tick thinks. But it’s happening faster than she expected. All the monsters are coming back.” “Why?” “There’s no one to stop them.” There was silence for a moment. “There’s me,” said Tiffany.

"There's a door," he whispered. "Where does it go?" "It stays where it is, I think," said Rincewind.

The trouble is you can shut your eyes but you can’t shut your mind.

Assassins did have a certain code, after all. It was dishonorable to kill someone if you weren't being paid.

Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life.

If failure had no penalty success would not be a prize.