Mahabharata Udyoga Parva Chapter 72:3

Mahabharata Udyoga Parva (Bhagwat Yana Parva) Chapter 72:3 He that hath shame gratifieth the gods, the Pitris, and even his own self, and by this he obtaineth emancipation, which indeed, is the highest aim of all righteous persons. Thou hast, O slayer of Madhu, seen all this in me with thy own eyes. It is not unknown to thee, how, deprived of kingdom, we have lived these years. We cannot lawfully abandon that prosperity (which had been ours). Our first efforts will be such that, O Madhava, both ourselves and the Kauravas, united in peace, will quietly enjoy our prosperity. Otherwise, we shall, after slaying the worst of the Kauravas, regain those provinces, although success through bloodshed by destruction of even despicable foes that are related to us so dearly is the worst of all fierce deeds, O Krishna. We have numerous kinsmen, and numerous also are the revered seniors that have taken this or that other side. The slaughter of these would be highly sinful. What good, therefore, can there be in battle? Alas, such sinful practices are the duties of the Kshatriya order! Ourselves have taken our births in that wretched order! Whether those practices be sinful or virtuous, any other than the profession of arms would be censurable for us. A Sudra serveth; a Vaisya liveth by trade; the Brahmana have chosen the wooden bowl (for begging), while we are to live by slaughter! A Kshatriya slayeth a Kshatriya; fishes live on fish; a dog preyeth upon a dog! Behold, O thou of the Dasarha race, how each of these followeth his peculiar virtue. O Krishna, Kali is ever present in battle-fields; lives are lost all around. It is true, force regulated by policy is invoked; yet success and defeat are independent of the will of the combatants. The lives also of creatures are independent of their own wishes, and neither weal nor woe can be one's when the time is not come for it, O best of the Yadu's race. Sometimes one man killeth many, sometimes many united together kill one. A coward may slay a hero, and one unknown to fame may slay a hero of celebrity. Both parties cannot win success, nor both be defeated. The loss, however, on both sides may be equal. If one flieth away, loss of both life and fame is his. 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.