People aren't supposed to look back. I'm certainly not going to do it anymore. I've finished my war book now. The next one I write is going to be fun. This one is a failure, and had to be, since it was written by a pillar of salt. It begins like this: 'Listen: Billy Pilgrim has come unstuck in time.' It ends like this: 'Poo-tee-weet?

Autore: Kurt Vonnegut Jr.