The rascal says, that our coming to this material world is to the lusty desires of the father and mother. Therefore the child has no meaning. It is a by-product of the lusty desire. So if I don't want it, kill it, destroy it. This is going on. But that is not the fact. The child has come into the womb of the mother, a particular type of mother, not the sa. . ., every mother is producing the same type of child. No. Why? There is cause. There is cause, hetunā. Without cause there cannot be anything. Karmaṇā daiva-netreṇa (SB 3.31.1), the cause is his activities. According to the activities, he is producing the next body automatically. That is automatically. But there is cause, his activity.
That is also stated in the Bhagavad-gītā: kāraṇaṁ guṇa-saṅgo 'sya sad-asad-janma-yoniṣu (BG 13.22). Kāraṇam. Kāraṇam means cause. What is the cause? The cause is that as he's associating with a particular type of the modes of nature, sattva-guṇa, rajo-guṇa, tamo-guṇa. . . If he's associating with tamo-guṇa, then next life he's preparing in the lower animal kingdoms or most degraded family. Jaghanya-guṇa-vṛtti-sthā adho gacchanti tāmasāḥ (BG 14.8). If one is associating with tamo-guṇa, ignorance—no knowledge; in the darkness—then he is gliding down to the lower species of life: animal, birds, beast, trees, plants, aquatics, insects, serpents—so many. Adho gacchanti. Adhaḥ means going down. Tāmasāḥ. And ūrdhvaṁ gacchanti sattva-sthāḥ (BG 14.18). Those who are in the goodness, those who are associating with the modes of material nature in goodness, just like satyaṁ śamo damas titikṣā ārjavam, jñānaṁ vijñānam āstikyaṁ brahma-karma svabhāva-jam (BG 18.42): brahminical qualification—truthful, controlling the mind, controlling the senses, simplicity, tolerant, full faith in scripture and God, full knowledge, practical application of knowledge. . . This is called sattva-guṇa. So if you cultivate sattva-guṇa, then you are elevated to the higher planetary system. Why there are so many planets? The moon planet, the sun planet, so brilliant planets—why there are? There are also different places for different kinds of living creature. There is hetu. There is cause. And similarly, rajo-guṇa, passionate. . . So madhye tiṣṭhanti rājasāḥ.
So there is hetu. Hetu means cause. Not without cause. Nobody has taken birth in this material world without any cause. And according to the cause, the particular type of body is built up. Karmaṇā daiva-netreṇa (SB 3.31.1). A big science there is. Unfortunately there is no education for this science. Maybe in future they will take interest. As we are publishing the books and going to the universities and to the professors, there may be. There is possibility now. Otherwise these rascal did not know what is the science. They did not care. Big, big professors, big, big scientists, they are putting the theories that life has come from chemicals, chemical evolution, and they are getting Nobel Prize. And if they are offered that "Take these chemicals. Produce a life," they'll deny.