when in Rome
Meaning
This phrase advises one to adapt to the customs and practices of a foreign place or new environment they are visiting.
Origin
The core of this advice stretches back to the late 4th century, born from a rather practical dilemma faced by Saint Augustine. While visiting Milan, Augustine noticed that the local church, led by its wise bishop Saint Ambrose, did not fast on Saturdays, unlike the custom in Rome where Augustine usually resided. Perplexed, Augustine sought Ambrose's counsel on which custom to follow. Ambrose's sagely reply, immortalized in a letter, was simple yet profound: 'When I am here [in Milan], I do not fast on Saturday; when I am in Rome, I fast on Saturday.' This pragmatic wisdom, emphasizing respect for local customs, quickly became a guiding principle, eventually shortening into the punchy proverb we use today, urging us all to blend in and embrace the local way of life wherever we may find ourselves.
Examples
- I usually don't eat dessert for breakfast, but we're on vacation in Paris, so when in Rome, right?
- Even though she prefers quiet evenings, Sarah decided to join the lively karaoke night with her new colleagues, thinking, when in Rome.