不打不成相識 bù dǎ bù chéng xiāng shí

DEFINITIONS

  1. don't fight, won't make friends (idiom); an exchange of blows may lead to friendship

CHARACTERS

不 bù no, not; un-; negative prefix
打 dǎ strike, hit, beat; fight; attack
不 bù no, not; un-; negative prefix
成 chéng completed, finished, fixed
相 xiāng mutual, reciprocal, each other
識 shí recognize, understand, know