知彼知己 zhī bǐ zhī jǐ
zhī bǐ zhī jǐ
set phrase
to know the enemy and know oneself
Domain: Idiom 成语
Notes: Quote: idiom from the Warring States period text 孫子兵法 “Art of War” by Sunzi, section 10 (tr. by Giles 1910, p. 112; CC-CEDICT '知彼知己'; Guoyu '知彼知己'; Mathews 1931 '知彼知己', p. 128)