Prabhupāda: Ah, he knows. Second Canto, Fourth Chapter. So asmin bhave. This is the problem. These rascals, they do not care to understand. They are so absorbed in ignorance. Just like some of the, what is called, smugglers. Smugglers, they go on with their work. They do not know . . . some of them know also that, "We'll be punished. We'll be arrested." Still, they go on. That is the difficulty. A thief knows that, "If I am arrested for these criminal acts, I'll be punished." He knows it. And perhaps he has been punished several times. But still, he commits the same thing. Still, he steals. Punaḥ punaś carvita-carvaṇānām (SB 7.5.30).
So why? Ignorance. Ignorance. So therefore this very word is used, avidyā. He never thinks . . . he is so much absorbed in ignorance that he has no time to think that, "Repeatedly I am stealing, and repeatedly I am arrested, and I am punished, I sent to jail. Why I am doing this?" Result is not very good. Just like a person too much sexually inclined, he suffers in so many venereal diseases, undergoes operation, and still, he goes to prostitute, again does the same thing. This is avaidha-strī-saṅga, illegitimate. And legitimate also. After sex, the woman is pregnant, and she has to suffer for ten months. And at the time of delivery it is very dangerous sometimes. And the man also, after he gets the child, he has to take care of the child. He has to work hard to give education. This is proper, proper sex. The proper sex, there are so many difficulties. And what is the . . . what to speak of the improper sex? You kill the child. You take contraceptive. You make this; you make that.