This English idiom has the meaning of "what is good for one person may not necessarily be good for another".

There are interesting variations to this idiom. Among them,

♔  One man's ceiling is another man's floor.
♔  One man's freedom fighter is another man's terrorist.
♔  One man's gain is another man's loss.
♔  One man's faith is another man's superstition / mythology.
♔  One man's vulgarity (profanity) is another man's lyric.

♔  One person's nationalism is another's rightful pride in their country. - BBC Our World


See also one country's ...