A horse, a woman, a gun, or any other article may be the cause of a quarrel, and threats and menaces pass which place each under the necessity of destroying the other to save himself. They say they can not do otherwise, and often regret the necessity. To kill an enemy, instead of being reckoned an act ungrateful to Wakoñda, is thought by them to be highly pleasing, therefore his aid to accomplish this and even private revenge is sought in prayers, fasts, sacrifices, etc. All mankind have, they think, an equal right to live, and an equal right to preserve that right, and it is the sense of this self-preservation that compels them to remove any danger in their way, such as wild beasts, enemies, or any of their own people whom they are aware are only waiting an opportunity against themselves; and it is also this right to life and fear of being assassinated that compels them to take every advantage to accomplish the destruction of the danger pending. We have questioned several Indians on this subject who have killed their own people and all have led to the same subject, viz., the necessity imposed upon them by quarrels to kill or be killed. To act otherwise when all peaceful means have failed would be considered as the height of foolishness and cowardice. An Indian does not take life from mere thirst for blood, nor, as has been stated, to acquire property, as in either case no advantage would be gained. When they waylay and murder whites they believe they are doing right; that whites have no business in their country, and are therefore looked upon in the light of enemies.