知己知彼 [－－－－]

Jyutping zi1 gei2 zi1 bei2
Pinyin zhī jǐ zhī bǐ

Definitions (CC-CEDICT)
  1. know yourself, know your enemy (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3])
Definitions (粵典–words.hk)
  1. 語句
    了解​自己​，​又​能夠​了解​對​手​嘅​實​力​，​從​而​可以​喺​打仗​或者​交手​嘅​時​候​立​於​不​敗​之​地
    to know oneself and the opponent well; to know the enemy and know yourself
Definitions (Wiktionary)
  1. phrase, idiomatic
    to know yourself and know the enemy
    (syn.) 知彼知己
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）