That was always the dream, wasn't it? 'I wish I'd known then what I know now'? But when you got older you found out that you NOW wasn't YOU then. You then was a twerp. You then was what you had to be to start out on the rocky road of becoming you now, and one of the rocky patches on that road was being a twerp.
Night Watch: (Discworld Novel 29) (ed. Random House, 2009) - ISBN: 9781407035321