Not trying to go too OT here but are you serious? What about
Janteloven? (In Norway and Denmark
.) It literally says, "You're not to think you are anything special". It's pretty conformist, as far as the Western world goes. There's nothing close to that in the U.S.
The Law of Jante (YAN-tuh, Danish: Janteloven [ˈjæntəˌlɔwˀən, -lɒwˀ-])[note 1] is a code of conduct[1] originating in fiction and now used colloquially to denote a social attitude of disapproval towards expressions of individuality and personal success.