Śyāmasundara: He says that acting in accordance with a conscience is the right type of activity.
Prabhupāda: The conscience, the so-called conscience is created. You go on killing, your conscience will be killing conscience, "It is all right." The thief becomes accustomed to steal, the conscience will say, "Yes, I must steal. It is my right." So you can create your conscience in that way. By association, by misguiding, they also create their conscience. Just like the Christian religion says, "Thou shalt not kill," but they are killing, creating a conscience, "Yes, killing is all right." In the religion it is forbidden, "Thou shalt not kill," but they are creating another conscience, "It is right." The conscience is created by association. By good association, conscience is the good conscience and by bad association, a bad conscience is created. So there is no such standard as conscience. Conscience means discriminating power.
Śyāmasundara: He says that there is an absolute conscience, which means pure rationality. Whatever is purely rational is conscience.
Prabhupāda: Pure rationality is Kṛṣṇa consciousness. That is purest. Unless one comes to that standard, the so-called conscience, so-called philosophy is of no value.
Śyāmasundara: He says that punishment for crime is justified because it vindicates justice and restores rights.
Prabhupāda: Yes, therefore when one is killing an animal, he should be prepared for being killed. That will be justice. That is Manu's... Manu-saṁhitā says that when a man, murderer is hanged, that is complete justice, complete justice. That is to save him, because without being hanged in this life, he if he escapes justice, then he will have to suffer next life very severely. So to save him from so many troubles in the next life, if he is killed, I mean to say, hanged, in this life, then he is saved. Therefore the king who is hanging him is doing him justice. Life for life. If this is the justice, then why one should not be prepared of being killed because he is killing an animal? That is justice. That is Vedic philosophy. In Vedic philosophy, when an animal is killed, it is said that "You are animal, you are being sacrificed before goddess Kālī, so you get next chance to become a human being." That means he is given a lift from the evolutionary process to come to the human being because he is giving his life innocent, and one man wants to kill him, he will be killed. So because you are being killed before the deity, you get next chance human being and you have got the right to kill him. This is kālī-da, mantra. So any sane man will understand that "I am going to be killed by him so why shall I take the risk."