So we have to minimize our bodily necessities of life and we have to expand the spiritual necessities of life. That is the perfect way of civilization. In the modern age, the more we can increase the demands of artificial demands of the body, it is called civilization. And when one is engaged, minimizing the demands of the body and utilize the valuable time for advancing in spiritual consciousness, they are accepted as uncivilized or not advanced, in so many words. But actually, India's civilization was based on this principle. We can find in the history of old days that they knew everything. From the books we can understand they had advanced knowledge for material civilization. Because we find description of aeroplanes, description of television. But they were used very, I mean to say, only limited circle, not that extensively. Because the whole process of civilization was to divert your attention too much for material advancement, but whatever little span of life you have got, just utilize it for spiritual advancement and get out of this material entanglement. That is the basic principle of civilization. Therefore the social life, human society, was divided into eight divisions. They are called varṇa and āśrama. In the Bhagavad-gītā also, you will find, cātur-varṇyaṁ māyā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). Four divisions of society, for spiritual advancement and for material advancement both. For spiritual advancement, brahmacārī, gṛhastha, vānaprastha, and sannyāsa.
So first twenty years, twenty-five years, or twenty years, because education begins from five years... Up to five years the child is given full liberty—whatever he likes, he may do. Lālayet pañca-varṣāṇi. It is said that you can give liberty to the child only for five years. And tadayet daśa-varṣāṇi. And as soon as he is on the fifth year, you must be very strict on the child, on the boy, so that he may not be spoiled. Very strict. Simply engage him in proper education. Tāḍayet daśa varṣāṇi. And prāpte tu ṣoḍaśe varse. And as soon as he is on the sixteenth year... Ṣoḍaśe means sixteenth year. Prāpte tu ṣoḍaśe varṣe putraṁ mitravad ācaret: the son, the boy should be treated as friend. No more punishment. Then there will be reply. So there must be restraint. So from sixteenth year to twenty-fifth year, higher education. And after higher education, if the boy is still after sense gratification, he should be allowed to get himself married and enter into family life. That family life is allowed for another twenty-five years. When youthhood is very strong, let him beget some children and... Of course, there is regulation of children. One has to take care of the children and he has to educate children, not that irresponsibly begetting children. No. So family life.