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Jyutping jan4 bit1 zi6 mou5 ji4 hau6 jan4 mou5 zi1
Pinyin rén bì zì wǔ ér hòu rén wǔ zhī

Definitions (Wiktionary)
  1. proverb
    One is humiliated by others always because one has brought humiliation upon oneself first.