golden rule
US /ˌɡoʊl.dən ˈruːl/
UK /ˌɡoʊl.dən ˈruːl/

1.
regola d'oro
the principle of treating others as one would wish to be treated oneself
:
•
Always remember the golden rule: treat others as you want to be treated.
Ricorda sempre la regola d'oro: tratta gli altri come vorresti essere trattato tu.
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The principle of the golden rule is found in many cultures and religions.
Il principio della regola d'oro si trova in molte culture e religioni.