Saint Ambrose

When I am at Rome, I fast on a Saturday: when I am at Milan I do
not. Do read more

When I am at Rome, I fast on a Saturday: when I am at Milan I do
not. Do the same. Follow the custom of the church where you
are.

When I am at Rome I fast as the Romans do; when I am at Milan I
do not read more

When I am at 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, if you would neither give
offence to others, nor take offence from them.

If you are at Rome live in the Roman style; if you are elsewhere
live as they live elsewhere.
read more

If you are at Rome live in the Roman style; if you are elsewhere
live as they live elsewhere.
[Lat., Si fueris Romae, Romano vivito more;
Si fueris alibi, vivito sicut ibi.]