Śrīmad-Bhāgavatam 3.25.12
—
Bombay, November 12, 1974
So this Kṛṣṇa consciousness movement means they are creating a society of swans, not of crows. Not of crows. The crows are not interested. They are interested in that left-out, I mean to say, garbage. They are interested. Punaḥ punaś carvita-carvaṇānām [SB 7.5.30]. Punaḥ punaś carvita-carvaṇānām. Just like we throw away... After eating, we throw away the leaf. There are some remnants of foodstuff, and the crows come, the dogs comes. They are interested. They will not say... A sane man will not go there. But these crows and dogs will go there. So this world is like that. Punaḥ punaś carvita-carvaṇānām [SB 7.5.30]. Chewing the chewed. Just like you chew one sugarcane and throw it on the street. But if somebody comes again to chew it, then he's a fool. He must know "The juice has been taken away from that sugarcane. What shall I get by chewing?" But there are animals like that. They want to chew again. So our this material society means chewing the chewed.
A father gives education to his son to earning livelihood, gets him married, and settles him, but he knows that "This kind of business, earning money and marrying, begetting children, I have done, but I am not satisfied. So why I am engaging my son in this business?" This is called chewing the chewed. Chewing the same thing. "I have not been satisfied with this business, but why I am engaging my son also?" The real father is he who does not allow his son to taste the chewing the chewed. That is real father. Pitā na sa syāj jananī na sā syāt, na mocayed yaḥ samupeta-mṛtyum. This is real contraceptive. A father, a man should not desire to become a father, a woman should not desire to become a mother, unless they are fit to save the children from the impending clutches of death. That is the duty of father and mother.