知己知彼,百戰不殆。 ( Zhī jǐ zhī bǐ, bǎi zhàn bù dài. )
If you know both yourself and your enemy, you can win numerous (literally, "a hundred") battles without jeopardy.
知己知彼,百戰不殆。 ( Zhī jǐ zhī bǐ, bǎi zhàn bù dài. )
If you know both yourself and your enemy, you can win numerous (literally, "a hundred") battles without jeopardy.