Prabhupāda: Our first problem is—because we have got this material body—eating. Everyone must eat. So Kṛṣṇa says in the Bhagavad-gītā, annād bhavanti bhūtāni (BG 3.14): "If there is sufficient food grains, then both man and animal, they become happy." Therefore our first religion is to produce food grain sufficiently to feed everyone. Kṛṣi-go-rakṣya-vāṇijyaṁ vaiśya-karma svabhāva (BG 18.44). This matter has been entrusted to the vaiśyas. They should produce sufficient food and give protection to the cows for sufficient milk. Then the whole human society, animal society, will be happy.
But we are disobeying the orders, or the rules, given by God. Instead of producing food, we are producing motorcars. And motor tires, motor parts, and so many other things. And therefore people are starving. The manual labor is being misused. We are disobeying the orders of God. Therefore we are unhappy. I have seen all over the world, there are enough space for producing food grains. And if we actually produce food grain, we can maintain ten times of the population, present population of the whole world. There is no question of scarcity, because God has created everything complete. Pūrṇam idaṁ pūrṇam ādāya pūrṇāt pūrṇam udacyate (Īśo, Invocation). There cannot be any defect in the creation of God. We have created these defects on account of our disobeying the orders of God. God never said that "motorcar-ād bhavanti bhūtāni." He never says. Instead of producing food grains, we are producing so many unwanted things. People energy's engaged for. . . Just like in America or in every country, so much energy and resources are engaged for preparing war materials. And that means there must be war, and you must be killed; I must be killed. You will kill me; I will kill you. That's all.
Therefore God says, cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). The human society should be divided into four classes of men: the most intelligent class, brāhmaṇa; the next intelligent class, kṣatriya; then next intelligent class, vaiśyas; and the fourth-class men, who cannot become brāhmaṇa, neither kṣatriya, nor vaiśya, they are called śūdra. Śūdra is meant for giving service to the others. Paricaryātmakaṁ karyaṁ śūdra-karma svabhāva-jam (BG 18.44). So in this age, ninety-nine percent people are engaged as śūdra, working for others. No independence. Otherwise brāhmaṇa, kṣatriya, vaiśya, they are independent. They are nobody's servant. But at the present moment, education means how to become expert servant. That means śūdra. So we cannot expect any good things from śūdra. That is not possible. Formerly there was monarchy, and the king were called rājarṣis, saintly king. Imaṁ rājarṣayo viduḥ (BG 4.2). These instruction are meant for the rājarṣis, not for the śūdras. So the rājarṣis, they would take instruction from superior authority, brāhmaṇas and Vaiṣṇavas, and they will accordingly rule over. And the vaiśyas would produce food grains sufficiently and milk sufficiently. People would eat very nicely, and they keep their health fit and save time for understanding his relationship with God. That is perfect civilization.