In the beginning there was nothing, which exploded. - Terry Pratchett

All witches are selfish, the Queen had said. But Tiffany’s Third Thoughts said: Then turn selfishness into a weapon! Make all things yours! Make other lives and dreams and hopes yours! Protect them! Save them! Bring them into the sheepfold! Walk the gale for them! Keep away the wolf! My dreams! My brother! My family! My land! My world! How dare you try to take these things, because they are mine!

I have a duty!

In theory it was, around now, Literature. Susan hated Literature. She'd much prefer to read a good book.

Everyone's heard of Erwin Schrodinger's famous thought experiment. You put a cat in a box with a bottle of poison, which many people would suggest is about as far as you need to go.