In Augustine, Epistulae, Letter 36 (c. AD 400) - Ambrose of Milan | WIST Quotations
When I am in Rome, I fast as the Romans do; when I am at Milan, I do not fast. So likewise you, whatever church you come to, observe the custom of the place. [Cum Romanum venio, ieiuno Sabbato; cum hic sum, non ieiuno: sic etiam tu, ad quam forte…
