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

1.
gouden regel
the principle of treating others as one would wish to be treated oneself
:
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Always remember the golden rule: treat others as you want to be treated.
Onthoud altijd de gouden regel: behandel anderen zoals je zelf behandeld wilt worden.
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The principle of the golden rule is found in many cultures and religions.
Het principe van de gouden regel is te vinden in vele culturen en religies.