Mbh 5.72.6b

Under all circumstances, however, war is a sin. Who in striking another is not himself struck? As regard the person, however, who is struck, victory and defeat, O Hrishikesa, are the same. It is true that defeat is not much removed from death, but his loss also, O Krishna, is not less who winneth victory. He himself may not be killed, but his adversaries will kill at least some one that is dear to him, or some others and thus the man, O sire, deprived of strength and not seeing before him his sons and brothers, becometh indifferent, O Krishna, to life itself. Those that are quiet, modest, virtuous, and compassionate, are generally slain in battle, while they that are wicked escape. Even after slaying one’s foes, repentance, O Janardana, possesseth the heart. He that surviveth among the foes giveth trouble, for the survivor, collecting a force, seeketh to destroy the surviving victor. In hopes of terminating the dispute, one often seeketh to exterminate the foe. Thus victory createth animosity, and he that is defeated liveth in sorrow. He that is peaceful, sleepeth in happiness, giving up all thoughts of victory and defeat, whereas he that hath provoked hostility always sleepeth in misery, with, indeed, an anxious heart, as if sleeping with a snake in the same room. He that exterminates seldom winneth fame. On the other hand, such a person reapeth eternal infamy in the estimation of all. Hostilities, waged over so long, cease not; for if there is even one alive in the enemy’s family, narrators are never wanted to remind him of the past. Enmity, O Kesava, is never neutralised by enmity; on the other hand, it is fomented by enmity, like fire fed by clarified butter. Therefore, there can be no peace without the annihilation of one party, for flaws may always be detected of which advantage may be taken by one side or other. They that are engaged in watching for flaws have this vice.