I read a great comment once in response to a post about parental advice - roughly: "When I was young, my father said to me, 'Son, don't be an asshole.' Since t

I read a great comment once in response to a post about parental advice - roughly: "When I was young, my father said to me, 'Son, don't be an asshole.' Since then, before doing anything, I ask myself, 'Would an asshole do this?' And if they would, I don't do it."