Sheldon Cooper: What are you doing?
Mary Cooper: Confiscating your comic books. You can have them back when you’re 18.
Sheldon Cooper: You’re taking Casper the Friendly Ghost?
Mary Cooper: Ghosts are sacrilegious. Nothing friendly about that.
Sheldon Cooper: Very well. There’s one more book that belongs in the box, filled with adultery, genocide, and even human sacrifice. (give her the Bible)
Mary Cooper: You think you’re so smart.
From Young Sheldon – Season 1 Episode 18: ‘A Mother, a Child, and a Blue Man’s Backside’ (1×18)