行軍篇 NO.4：

敵近而靜者，恃其險也；
遠而挑戰者，欲人之進也；
其所居易者，利也；
眾樹動者，來也；
眾草多障者，疑也；
鳥起者，伏也；
獸駭者，覆也；
塵高而銳者，車來也；
卑而廣者，徒來也；
散而條達者，樵采也；
少而往來者，營軍也；

這句啥意思：

敵人離我很近而安靜的，是依仗它占領險要地形；
敵人離我很遠但挑戰不休，是想誘我前進；
敵人之所以駐扎在平坦地方，是因為對它有某種好處。
許多樹木搖動，是敵人隱蔽前來；
草叢中有許多遮障物，是敵人布下的疑陣；
群鳥驚飛，是下面有伏兵；
野獸駭奔，是敵人大舉突襲；
塵土高而尖，是敵人戰車駛來；
塵土低而寬廣，是敵人的步兵開來；
塵土疏散飛揚，是敵人正在拽柴而走；
塵土少而時起時落；是敵人正在扎營。

英文這么說：

When the enemy is close at hand and remains quiet,he is relying on the natural strength of his position.
When he keeps aloof and tries to provoke a battle,he is anxious for the other side to advance.
If his place of encampment is easy of access,he is tendering a bait.
Movement amongst the trees of a forest shows that the enemy is advancing.
The appearance of a number of screens in the midst of thick grass means that the enemy wants to make us suspicious.
The rising of birds in their flight is the sign of an ambuscade.
Startled beasts indicate that a sudden attack is coming.
When there is dust rising in a high column,it is the sign of chariots advancing;
when the dust is low,but spread over a wide area, it betokens the approach of infantry.
When it branches out in different directions,it shows that parties have been sent to collect firewood.
A few clouds of dust moving to and fro signify that the army is encamping.

心理分析

此段是對敵我雙方的心理分析：敵人逼近而安靜，是依靠他所占據的有利地形，因而我們必須小心，耐心，使敵人的有利地形發揮不了作用；敵人相隔甚遠卻主動挑戰，是想引誘我們冒進，因而我們切不可操之過急，更不可孤軍深入。這幾句啟發我們要懂得軍事心理學，要善于分析敵人的表現和軍事跡象，采取相應的軍事對策。