知己知彼，百战百胜

Chinese

For pronunciation and definitions of 知己知彼，百战百胜 – see 知己知彼，百戰百勝 (“Know yourself and know the enemy, and you can win every battle you fight.”). (This term is the simplified form of 知己知彼，百戰百勝).

Notes: Simplified Chinese is mainly used in Mainland China, Malaysia, and Singapore. Traditional Chinese is mainly used in Hong Kong, Macau, and Taiwan.