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.