털어서 먼지 안 나는 사람 없다
From Korean Wiki Project
If you brush them off, you will find that everyone has some dust.
Used to remind people that no one is perfect.
누구든지 결점을 찾으려고 뜯어보면 허물이 없는 사람은 없다.
No one is perfect. / Everyone has a skeleton or two in his closet./ Everyone has a weak spot.