1.
Know the enemy and know yourself, and you can fight a hundred Battles without defeat.
知己知彼，百战不殆。
2.
"He who has a thorough knowledge of the enemy and himself is bound to win in all battles.
知彼知己者，百战不殆；
3.
Know the enemy and know yourself, and you can fight a hundred battles with no danger of defeat.
知彼知己, 百战不殆。
4.
Better the devil you know than the devil you don't
知己知彼,百战百胜
5.
Hence the saying: If you know the enemy and know yourself, you need not fear the result of a hundred battles.
故曰：知己知彼，百战不贻；
6.
If you know neither the enemy nor yourself, you will succumb in every battle.
不知彼不知己，每战必败。
7.
He who knows not the enemy and himself is bound to perish in all battles."
不知彼，不知己，每战必殆。
8.
Hence the saying: If you know the enemy and know yourself, your victory will not stand in doubt;
故曰：知彼知己，胜乃不殆；
9.
If you know yourself But not the enemy,for every victory gained you will also suffer a defeat.
不知彼而知己,一胜一负﹔
10.
He who knows himself but not the enemy has only an even chance of winning.
不知彼而知己，一胜一负；
11.
Traite de la connaissance de Dieu et de soi-meme
知神知己论(勃虚哀著)
12.
Hence the saying: If you know the enemy and know yourself, your victory will not stand in doubt; if you know Heaven and know Earth, you may make your victory complete.
故曰:知己知彼,胜乃不殆﹔知天知地,胜乃可全。
13.
Drink wine with your intimate friends and recite poetry with those who can
酒逢知己饮,诗向会人吟
14.
know which side one's bread is buttered o
知道自己的利益所在
15.
He knows where his interest lies.
他知道自己的利益所在。
16.
He's always airing his knowledge.
他总是炫耀自己的知识。
17.
He knew that his days were numbered.
他知道自己来日不多了。
18.
Do you happen to know your own blood group?
你知道你自己的血型吗？