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Jyutping zi2 jiu3 muk6 dik1 zing3 dong3 , ho2 ji5 bat1 zaak6 sau2 dyun6
Pinyin zhǐ yào mù dì zhèng dàng , kě yǐ bù zé shǒu duàn

Definitions (Wiktionary)
  1. proverb
    The end justifies the means; all's fair in love and war.