Śyāmasundara: So the choice between a good and a bad action should be practiced to reduce evil, not just theoretical. That's his idea. That's his point.
Prabhupāda: Yes. No theory. This is practical. Now, as a big machine, the screw is a part, so if every part works nicely, the machine goes nicely. So if we understand... Just like I think last night I was explaining mukha baho rūpa divya: the gigantic body, the brāhmaṇa class, they are the mouth. So one must do the duty of the mouth. The mouth speaks, vibrates and eats. So our proposition is to chant Hare Kṛṣṇa mantra and eat Kṛṣṇa prasādam. Then the mouth duty, the brāhmaṇa's duty, is performed. Similarly, the kṣatriya's duty—again we come to that varṇāśrama-dharma. So everyone is factually part and parcel of God and executes his prescribed duty, then it is perfect. varṇāśramācāravatā puruṣeṇa paraḥ pumān viṣṇur ārādhyate puṁsāṁ nānyat tat-toṣa-kāraṇam [Cc. Madhya 8.58]
If you want to satisfy the Supreme Lord, then you must execute the functions as they are prescribed in the varṇāśrama system. Then everything is all right. The same example: If all the parts of a machine is in order, working, it will make no trouble. If one of the screws, I mean, is slack, or it has fallen down, then another part is dislocated, that whole work is stopped. So we should consider in that way, that we are all part and parcel of Kṛṣṇa. So according to part and parcel, you must execute your duty—as brāhmaṇa, as kṣatriya, as vaiśya, as śūdra. And the brāhmaṇa being head, he should give the direction. Therefore he is considered the guru of other varṇas. But he... Because if there is no head, no brāhmaṇa, then the whole thing is disturbed. And that is the position at the present moment. Actually there is no brāhmaṇa, or scarcity of brāhmaṇa. So others are not guided properly. Therefore there is chaos in the whole society. So we require to create some brāhmaṇas, and others should understand to abide by the direction of the brāhmaṇas. Then the whole society will be in order.