不打不成才
bù​dǎ​bù​chéng​cái

spare the rod and spoil the child

  1. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  2. 打 dǎ verb
    to hit
    to strike; to knock; to beat; to break
  3. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  4. 成才 chéng​cái verb + noun
    to become a talented person
    To become a useful or talented person; to make something of oneself; to become worthy of respect.