河水不犯井水

héshuǐbùfànjǐngshuǐ ㄏㄜˊ ㄕㄨㄟˇ ㄅㄨˋ ㄈㄢˋ ㄐㄧㄥˇ ㄕㄨㄟˇ

    • to keep to one's own area and not interfere with others
    • to live and let live

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
river water doesn't encroach on well water
Meaning
Two parties keep to their own areas and don't interfere with each other. Neutral; close to 'live and let live'.

Sources