John: You ever read any Kant, Ringo?
Ringo: I tried but I can't.
George: Well, he bangs on about the categorical imperative.
Ringo: What's that?
Paul: It's like the golden rule.
Ringo: Him with the gold rules?
John: Not that golden rule, you daft git.
George: Do unto others, you know.
Ringo: Before they do unto you.
Paul: No, no, that's not it.
Ringo: What's an unto?