各人自扫门前雪，莫管他家瓦上霜
gè​rén​zì​sǎo​mén​qián​xuě​mò​guǎn​tā​jiā​wǎ​shàng​shuāng

everyone should mind their own business

各人自扫门前雪，莫管他家瓦上霜 各人自掃門前雪，莫管他家瓦上霜 gè​rén​zì​sǎo​mén​qián​xuě​mò​guǎn​tā​jiā​wǎ​shàng​shuāng
everyone should mind their own business
sweep the snow from your own doorstep and do not worry about the frost on your neighbor's roof; do not interfere in other people's affairs