郷に入っては郷に従え

In the first post of this blog, I quoted Japanese proverb:"郷に入っては郷に従え." I got a advice from my SNS member. He said it would be "Do in Rome as Romans do." I cannot judge if this is the most appropriate expression in English, because my English vocabulary is very poor...

>Japanese readers,
Do you have any other proverbs in English or French or Chinese for this Japanese proverb?