地形第十 X. Terrain
知敌之可击,知吾卒之可以击,而不知地形之不可以战,胜之半也。
If we know that the enemy is open to attack, and also know that our men are in a condition to attack, but are unaware that the nature of the ground makes fighting impracticable, we have still gone only halfway towards victory.
故知兵者,动而不迷,举而不穷。
Hence the experienced soldier, once in motion, is never bewildered; once he has broken camp, he is never at a loss.
故曰:知彼知己,胜乃不殆;知天知地,胜乃可全。
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.