Prabhupada: Yes. Because in the material world, for the maintenance of equilibrium of the society, sometimes killing is necessary. Just like fight, war. When the enemy has come to your country, you cannot sit idly; you must fight. But that does not mean that you are allowed to kill everyone as you like. That is a special circumstances when fighting must be there. Therefore the ksatriyas are required to give protection. Like the government is keeping military, police, soldiers, that does not mean government is after killing only. That department will be utilized when there is necessity, not that government is meant for killing. Government has other departments also. But this is also maintained. If there is necessity, it should be utilized. So Krsna, when He is on the battlefield, that was a necessity. He has got two business. Paritranaya sadhunam vinasaya ca duskrtam. Those who are demons, those who are disturbing elements, they should be killed. And those who are honest and peaceful, they should be maintained. But because it is material world, the world of duality, there are good and evil, so you have to curb down the evil. Sometimes force is required. So that killing is not bad. When the enemy is aggressive and you are killing, that killing and poor animal who is supplying milk... You are drinking milk, your mother, and you are killing. This killing and that killing is not the same thing. According to Vedic civilization the cow is to be given special protection. Why it is recommended for the cow? It does not say of other animal. When animal killing is required according to Vedic civilization, those who are meat-eaters, they are allowed to kill some insignificant animal like deer, goat, pigs. It is for the animal eaters, not for all. But if one is bent upon... And there are persons, they want meat-eating. So for them these unimportant animals are recommended. But cow is very important animal. You get from its milk so many nutritious food. So apart from religious sentiment, from economic point of view, cow-killing is not good. And from moral point of view it is not good because you drink cow's milk, so cow is your mother. According to Vedic civilization, there are seven mothers.
adau-mata guroh patni
dhenur dhatri tatha prthvi
sapta eta matarah smrtah
Adau-mata, real mother, and guru-patni, the wife of guru or teacher, she is also mother 'cause teacher is father. Adau-mata guroh patni brahmani, the wife of a brahmana. She is mother. Adau-mata guroh patni brahm..., raja-patnika, the queen, the wife of the king. She is mother. And then cow is mother because you are drinking her milk. Adau-mata guroh patni brahmani raja-patnika, dhenur dhatri, nurse. Nurse is also mother because you suck the breast of the nurse. Therefore according to Vedic civilization, there are seven mothers. So you cannot kill your mother. That is not very good philosophy. And who can deny, "The cow is not mother"? Who has got this audacity? You are drinking milk in the very morning. Christ says, "Thou shall not kill?--wholesale killing stop." And the Vedic literature is little liberal. It does not say, "Thou shall not kill," but, "You shall not kill at least cow." But the wholesale stop is not possible. The Vedic wisdom knows that. But you shall not kill at least cow. That is civilization. And the Christians are maintaining thousands of slaughterhouse. Is that very good proposal?