兼聽則明，偏聽則蔽 [－听则－－－听则－]

Jyutping gim1 ting1 zak1 ming4 ， pin1 ting1 zak1 bai3
Pinyin jiān tīng zé míng ， piān tīng zé bì

Definitions (Wiktionary)
  1. proverb
    Listen to both sides and you will be enlightened, heed only one side and you will be benighted.
    (syn.) 偏信则暗, 偏信則暗, 兼听则明, 兼聽則明