Dr. Pore: Love means never killing?
Prabhupāda: There are so many things. It is one of the items. Yes, that is one of the... Do you kill your own son? Why? Because you love him.
Dr. Judah: Would you explain the other side of it, the fact that, of course, the Bhagavad-gītā was, has its setting on a battlefield in which Kṛṣṇa enjoins Arjuna to go out and fight his kinsmen because it is his duty as a kṣatriya.
Prabhupāda: 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 kṣatriyas 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 Kṛṣṇa, when He is on the battlefield, that was a necessity. He has got two business. Paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām (BG 4.8). 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.