So we can do anything—of course, according to the plan, cātur-varṇyaṁ mayā sṛṣṭam (BG 4.13). We do. We act as a brahmin, we act as a kṣatriya, we act as a śūdra. It doesn't matter. But it must be kāma-rāga-vivarjitāḥ, kāma-saṅkalpa-vivarjitāḥ, not for personal interest. So without personal interest, who can act? Nobody will act. Now this Communist country . . . the Communist country, because they have killed personal interest, it is actually not developing. Not developing. I have seen it, personally. Because, as it is said in English proverb, "Proprietorship turns sand into gold." If I . . . one has got the sense that "I am the proprietor of this business," so he works very hard, and he turns sand into gold. There are many examples. A poor man starts . . . but because by his endeavor . . . now here, in this country also, nowadays this endeavor is being decreased because the . . . they're afraid of the income tax. They're thinking, "We shall earn so much with hard labor, and the government, from the income tax department, they will take ninety-eight percent. So why shall I work?" So this is economic impetus.
There is one Mr. Marshall, economist. Marshall's economics we read in our economic class. He said that, "Family affection is the impetus for economic development." He said that. That is fact. Therefore, according to Vedic system, a boy is married with a girl, and the husband and wife, as soon as . . . this is psychological. As soon as they become husband and wife . . . because the boy is searching after woman, and the girl is also searching after man. So they must be given. This is psychology. There is no question of so-called love. The, the former system of marriage, the father and mother selects one boy and one girl, and by force they are married. But the economic position becomes very nice. Family affection. That is also stated in the Śrīmad-Bhāgavatam. Puṁsaḥ striyā mithunī-bhāvam etaṁ tayor mitho hṛdaya-granthim āhuḥ (SB 5.5.8). These are very psychological. A married man becomes responsible, because there is affection, family affection. And one who is not married, he's irresponsible, because there is no family affection. That is the basic defect of the present society. There is no family affection. They are all irresponsible.
So this psychology's there, lusty desire. That is the basic principle of material life. So when one becomes free from this lusty desire, kāma-saṅkalpa-varjitāḥ, that is spiritual life. That is spiritual life. Very simple thing. The material life means the basic principle is lusty desire. Everyone is working so hard because the basic principle is lusty desire, "I shall enjoy like this. My wife shall enjoy. My children shall enjoy. My grandchildren shall enjoy. My countrymen will enjoy. My society will enjoy." This is the basic principle of whole modern civilization—expanding the selfish interest. Selfish interest means my sense gratification. And expand more, "My family's sense gratification." Expand it more, "My society's, my nation's . . ." This way. But this is material life. When one becomes this kāma-saṅkalpa-vivarjitāḥ, that is spiritual life. That is spiritual life. Therefore it is described here: yasya sarve samārambhāḥ. The samā . . . any attempt.