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golden rule

ˈɡoʊl.dən ruːl

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Literally:
a rule made of gold

What does "golden rule" mean?

  1. a fundamental principle that should always be followed
  2. the most important rule in a particular situation

Examples

  • The golden rule of cooking is to always taste your food as you go.
  • The golden rule of investing is to never put all your eggs in one basket.
  • Treat others the way you want to be treated — that's the golden rule.

Origin

Originally refers to the biblical principle 'Do unto others as you would have them do unto you' (Matthew 7:12). The term 'golden' was applied by the 17th century.

How to use it

Used both for the biblical moral teaching and, more broadly, for any essential principle in a given field.

Similar expressions

cardinal rule
guiding principle
fundamental principle

Related idioms

  • black and white

    clearly defined with no ambiguity

  • silver lining

    a positive aspect of an otherwise bad situation

  • grey area

    a situation or topic that is unclear or not well-defined

  • give the green light

    to give permission or approval to proceed

  • black sheep

    a member of a group who is considered different or disreputable

  • golden opportunity

    an excellent or ideal chance that may not come again

Use it in a practice answer

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