不打不成器 bù dǎ bù chéng qì

DEFINITIONS

  1. spare the rod and spoil the child (idiom)

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
器 qì receptacle, vessel; instrument