Prabhupāda: Now, the efficiency, just like medical treatment. If you know what is the end . . . Āyurvedic treatment it is called nidāna, nidāna, or diagnosis. First of all, before treating a patient you first of all diagnose what is the disease. Then you can give the proper medicine. But these people do not know how to diagnose. The diagnosis is that they must realize the Supreme. That is the disease. Because they have forgotten the Supreme, they are suffering. The symptoms are different. But they are treating only for the symptoms, not for the root cause. And this Kṛṣṇa consciousness movement is trying to treat the patient from the root cause. They have forgotten God. Let them remember God. Then everything will come into . . .
Professor Durckheim: There is no disease of the human being which the animal has not, which has not this source. Any kind of human malady and disease which is reserved to the human being has always this source of being separated from the innermost reality.
Prabhupāda: Yes. Not only that. The other than . . . lower animals—birds, beast and other—they have no problem. And we have created so many problems. They have no eating problem. Thousands and thousands of sparrows are here. They have no problem of eating. They are very nicely jumping, flying, eating.
Professor Durckheim: And eating each other without complex.
Prabhupāda: Yes. And they have problem. They are killing only. The human society, they should be advanced so much that even the birds, they have nothing to kill for their eating. They have got sufficient food. And we are advanced human being, we are killing for eating instead of God giving us so much food, enough food. And they are still puffed up with advanced civilization. They have no even human feeling. These poor cows, they are giving us milk, the most nutritious food, and we can prepare so many nice, nutritious foodstuff. So let them live. And if I want to eat at all, let it die; then we shall eat. Why kill it? So they have no common sense even. And they are leading the sinful life; still, they are very much proud of their civilization. And they are suffering periodical wars—war number one, war number two, war number three. This number will increase. Not only . . . without war, thousands of children are being killed within the womb. This is going on. If you kill, then you be killed. This is nature's reaction. You will be killed within the womb. You will never see the sunlight. Again you die, again enter another womb and again be killed. This has increased in modern society. Even the father, mother does not want to see the child living, "Kill him." And a few days, few years after, we shall kill each other.
So they are not afraid of any sinful life. You see? The nature will not tolerate. Kṛṣṇa will not tolerate. God will not tolerate, because God claims, "I am the father of everyone." So suppose if a very intelligent son kills another son of the father, he is not intelligent, will the father be very happy? A father is father for the intelligent son and the fool son. But if the intelligent son thinks that, "The fool son is useless. Let me kill him," the father will not be satisfied. So God is the supreme father, and He will never tolerate that, "Because you are intelligent, you are allowed to kill another unintelligent living being." No. Tena tyaktena bhuñjīthā (ISO 1): "Whatever foodstuff I have given to you, you eat then, live, and be God conscious." The animals, they are not coming to eat your foodstuff, your fruits. They are, rather, producing milk not for drinking themselves. They are giving you, and you have no obligation? The milk produced by the cows, it is taken by the human being. They do not drink it. So they are giving milk.
And after death, you are taking their skin. So every way they are serving. The stool, cow dung, we have stacked here. I have seen. They are also fertilizer. In so many ways they are giving you service, and you are killing the poor animal. What is the human civilization? Therefore Lord Buddha wanted to stop animal killing first. When there was too much animal killing, the incarnation of Lord Buddha was there to stop animal killing. Buddhism, there is no animal killing, although they are now killing animals. But originally Buddha religion means nonviolence. Also Lord Christ also said: "Thou shall not kill." And Kṛṣṇa says ahiṁsā. So in no religion unnecessary killing of animal is allowed. Even in Muhammadans, they are also . . . Kurvāni. Kurvāni means they can kill animals once in a year in the mosque. So everywhere animal killing is restricted.