Amber

“No! Please! I'll tell you whatever you want to know!" the man yelled.
"Really?" said Vimes. "What's the orbital velocity of the moon?"
"What?"
"Oh, you'd like something simpler?”
― Terry Pratchett, Night Watch

“What did I tell you about Mister Safety Catch?' said Vimes weakly.
When Mister Safety Catch Is Not On, Mister Crossbow Is Not Your Friend,' recited Detritus, saluting.”
― Terry Pratchett, Night Watch

“Timey-Wimey: Steven Moffat, Blink and J. W. Dunne’s theories of Time’,”
― Susanna Clarke, Piranesi

“But here's some advice, boy. Don't put your trust in revolutions. They always come around again. That's why they're called revolutions.”
― Terry Pratchett, Night Watch