各人自扫门前雪
sweep before your own door.
let each tailor mend his own coat.
let every man skin his own skunk.
let everyone mind his own business.
eg：selfishne5s makes you sweep before your own door after snowing.
同义词：事不关己，高高挂起 dogs never go into mourning when a horse dies.
反义词：通力合作 to pull together.
