He who serves a ruler of men in harmony with Tao will not subdue the Empire by force of arms. Such a course is wont to bring retribution in its train.

Where troops have been quartered, brambles and thorns spring up. In the tracks of great armies there must follow lean years.

The good man wins a victory then stops; he will not go on to acts of violence. Winning, he boasteth not; he will not triumph; he shows no arrogance. He wins because he cannot choose; after a victory he will not be overbearing.

Weapons, however beautiful, are objects of ill omen, hateful to all creatures. Therefore he who has Tao will have nothing to do with them.

Where the princely man abides, the weak left hand is in honour. But he who uses weapons honours the stronger right. Weapons are instruments of ill-omen; they are not the instruments of a princely man, who uses them when needs must. Peace and tranquillity are what he prizes. When he conquers, he is not elate. To be elate were to rejoice in the slaughter of human beings. And he who rejoices in the slaughter of human beings is not fit to work his will in the Empire.

On happy occasions, the left is favoured; on sad occasions, the right. The second in command has his place on the left, the general in chief on the right. That is to say, they are placed in the order observed at funeral rights. And, indeed, he who has exterminated a great multitude of men should bewail them with tears and lamentation. It is well that those who are victorious in battle should be placed in the order of funeral rights.

A certain military commander used to say: “I dare not act the host; I prefer to play the guest.¹’³ I dare not advance an inch; I prefer to retreat a foot”.

There is no greater calamity than lightly engaging in war. Lightly to engage in war is to risk the loss of our treasure.²’¹
When opposing warriors join in battle, he who has pity conquers.