揚湯止沸，不如去薪 [扬汤－－－－－－－]

Jyutping joeng4 tong1 zi2 fai3 ， bat1 jyu4 heoi3 san1
Pinyin yáng tāng zhǐ fèi ， bù rú qù xīn

Definitions (Wiktionary)
  1. proverb
    It is better to solve the root problem, rather than treating the symptoms.