地形篇 NO.4：

視卒如嬰兒，故可以與之赴深溪；視卒如愛子，故可與之俱死。
厚而不能使，愛而不能令，亂而不能治，譬若驕子，不可用也。
知吾卒之可以擊，而不知敵之不可擊，勝之半也；
知敵之可擊，而不知吾卒之不可以擊，勝之半也；
知敵之可擊，知吾卒之可以擊，而不知地形之不可以戰，勝之半也。

這句啥意思：

對待士卒象對待嬰兒，士卒就可以同他共患難：對待士卒象對待自己的兒子，士卒就可以跟他同生共死。
如果對士卒厚待卻不能使用，溺愛卻不能指揮，違法而不能懲治，那就如同驕慣了的子女，是不可以用來同敵作戰的。
只了解自己的部隊可以打，而不了解敵人不可打，取勝的可能只有一半；
只了解敵人可以打，而不了解自己的部隊不可以打，取勝的可能也只有一半。
知道敵人可以打，也知道自己的部隊能打，但是不了解地形不利于作戰，取勝的可能性仍然只有一半。

英文這么說：

Regard your soldiers as your children, and they will follow you into the deepest valleys; look upon them as your own beloved sons, and they will stand by you even unto death.
If, however, you are indulgent, but unable to make your authority felt; kind-hearted, but unable to enforce your commands; and incapable, moreover, of quelling disorder:then your soldiers must be likened to spoilt children;they are useless for any practical purpose.
If we know that our own men are in a condition to attack, but are unaware that the enemy is not open to attack, we have gone only halfway towards victory.
If we know that the enemy is open to attack,but are unaware that our own men are not in a condition to attack, we have gone only halfway towards victory.
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.

將兵之間的關系

這里再次闡述了將兵之間的關系，如何通過日常生活中的一些細節，提高將領的威信，團結軍心，上下一致同心對敵。戰場雖然時冷酷無情的，但是應該從士兵的日常生活給與相應的關懷，讓士卒從中感覺到溫暖，從而更加努力地去戰斗。將帥對待士卒應該要對待孩子一樣，公正嚴明，賞罰分明，就能團結一心，上下協同一致對敵，同生共死，使得全軍戰斗力提高，真正做到無堅不摧。又一次在軍事行為中體現出人性的光芒。