You must know what is religious system and what is not religious system. Simply one side is not full knowledge. Upayaṁ ca cintayet prajñā, apayaṁ ca cintayet(?). Just like if you want to do some business, you have calculated that "I shall invest so much money, and I shall get so much profit. So let us do this business. It is very nice." But śāstra says, "No, you have simply calculated the profit, and you also calculate no profit, not one-sided." Similarly, to know dharma, you must know adharma also, the opposite side. If you know white, you should know what is black. Otherwise the knowledge is not... Relative. This world is... If you know the father, then you must know the son. Or if you know the son, then you must know the father. So in the religious system, if one knows the son, the further improvement is to know the father. That is required. Otherwise incomplete. If you simply know the son of God, then it is incomplete. If you know the father of the son of God, then it is complete.
So here, in our Kṛṣṇa consciousness movement, there are... In all other religious system, they say that "Our this leader is son of God." Somebody says, "He is... Our leader is a servant of God." So now, because you did not know who is the master, who is the father, therefore gradually it has dwindled. Now we must know. The Kṛṣṇa consciousness movement is awarding, "Here is the father of the son of God—Kṛṣṇa. Here is the master of the servant." This is Kṛṣṇa consciousness. So there is no quarrel with other religious system. They know simply the son of God, but they do not know who is the father of the son.