夫兵者，不祥之器，物或恶之，故有道者不处。君子居则贵左，用兵则贵右。兵者不祥之器，非君子之器，不得已而用之，恬淡为上，胜而不美，而美之者，是乐杀人。夫乐杀人者，则不可得志于天下矣。吉事尚左，凶事尚右。偏将军居左，上将军居右。言以丧礼处之。杀人之众，以悲哀莅之，战胜以丧礼处之。
It is because arms are instruments of ill omen and there are Thingsthat detest them that the one who has the way does not abide by their use.
The gentleman gives precedence to the left when at home, but to theright when he goes to war.
Arms are instruments of ill omen, not the instruments of the gentleman.
When one is compelled to use them, it is best to do so without relish.
There is no glory in victory, and so to glorify it despite this isto exult in the killing of men.
One who exults in the killing of men will never have his way in theempire.
On occasions of rejoicing precedence is given to the left;
On occasions of mourning precedence is given to the right.
A lieutenants place is on the left;
The general's place is on the right.
This means that it is mourning rites that are observed.
When great numbers of people are killed, one should weep over themwith sorrow.
When victorious in war, one should observe the rites of mourning.
Fine weapons are none the less ill-omened things. (people despise them, therefore, those in possession of the Tao do not depend on them.) That is why, among people of good birth, in peace the left-hand side is the place of honour, but in war this is reversed and the right-hand side is the place of honour. (Weapons are ill-omened things, which the superior man should not depend on. When he has no choice but to use them, the best attitude is to retain tranquil and peaceful.) The Quietist, even when he conquers, does not regard weapons as lovely things. For to think them lovely means to delight in them, and to delight in them means to delight in the slaughter of men. And he who delights in the slaughter of men will never get what he looks for out of those that dwell under heaven. (Thus in happy events, the left-hand side is the place of honour, in grief and mourning, the right-hand is the place of honour. The lieutenant general stands on the left, while the supreme general stands on the right, which is arranged on the rites of mourning.) A host that has slain men is received with grief and mourning; he that has conquered in battle is received with rites of mourning.
Now arms, however beautiful, are instruments of evil omen, hateful, it may be said, to all creatures. Therefore they who have the Dao do not like to employ them. The superior man ordinarily considers the left hand the most honourable place, but in time of war the right hand. Those sharp weapons are instruments of evil omen, and not the instruments of the superior man; - he uses them only on the compulsion of necessity. Calm and repose are what he prizes; victory (by force of arms) is to him undesirable. To consider this desirable would be to delight in the slaughter of men; and he who delights in the slaughter of men cannot get his will in the kingdom. On occasions of festivity to be on the left hand is the prized position; on occasions of mourning, the right hand. The second in command of the army has his place on the left; the general commanding in chief has his on the right; - his place, that is, is assigned to him as in the rites of mourning. He who has killed multitudes of men should weep for them with the bitterest grief; and the victor in battle has his place (rightly) according to those rites.