百战不殆

to come unscathed through a hundred battles (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3]); to win every fight

hundred / numerous / all kinds of

to fight / fight / war / battle

no; not so / (bound form) not; un-

dangerous / perilous / to endanger / almost / probably / only

knowing the enemy and yourself will get you unscathed through a hundred battles (idiom, from Sunzi's "The Art of War")

know yourself and know your enemy, and you will never be defeated (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3])