求一句谚语

Know both your opponent and yourself ever victorious.

知己知彼百战百胜

Know both your opponent and yourself ever victorious.

you will never be defeated if you know everything about your opponent .

Perception of the opponent and yourself will yield forever success.

Your must know both your opponent and yourself.

要知己知彼。

Know the enemy and know yourself, and you can fight a hundred battles with no danger of defeat.

知己知彼，百战不殆。

The focus was entirely on understanding the enemy and oneself.

焦聚全集中在知己知彼上面。

Even Mao Tse-tung was known to say, "Know your enemy, know yourself; a hundred battles, a hundred won".

连毛泽东都说过要"知己知彼，百战百胜"。