The vaiśyas, the members of the mercantile communities, are especially advised to protect the cows. Cow protection means increasing the milk productions, namely curd and butter. Agriculture and distribution of the foodstuff are the primary duties of the mercantile community backed by education in Vedic knowledge and trained to give in charity. As the kṣatriyas were given charge of the protection of the citizens, vaiśyas were given the charge of the protection of animals. Animals are never meant to be killed. Killing of animals is a symptom of barbarian society. For a human being, agricultural produce, fruits and milk are sufficient and compatible foodstuffs. The human society should give more attention to animal protection. The productive energy of the laborer is misused when he is occupied by industrial enterprises. Industry of various types cannot produce the essential needs of man, namely rice, wheat, grains, milk, fruits and vegetables. The production of machines and machine tools increases the artificial living fashion of a class of vested interests and keeps thousands of men in starvation and unrest. This should not be the standard of civilization.
(SRIMAD BHAGAVATAM-------1:9:26------PURPORT).

Human society's means of living is clearly mentioned here as viśa, or agriculture and the business of distributing agricultural products, which involves transport, banking, etc. Industry is an artificial means of livelihood, and large-scale industry especially is the source of all the problems of society. In Bhagavad-gītā also the duties of the vaiśyas, who are engaged in viśa, are stated as cow protection, agriculture and business. We have already discussed that the human being can safely depend on the cow and agricultural land for his livelihood.

The exchange of produce by banking and transportation is a branch of this type of living. The vaiśyas are divided into many subsections: some of them are called kṣetrī, or landowners, some are called kṛṣaṇa, or land tillers, some of them are called tila-vaṇik, or grain raisers, some are called gandha-vaṇik, or merchants in spices, and some are called suvarṇa-vaṇik, or merchants in gold and banking. The brāhmaṇas are the teachers and spiritual masters, the kṣatriyas protect the citizens from the hands of thieves and miscreants, and the vaiśyas are in charge of production and distribution. The śūdras, the unintelligent class of men who cannot act independently in any of the above-mentioned activities, are meant for serving the three higher classes for their livelihood.

Formerly, the brāhmaṇas were given all the necessities of life by the kṣatriyas and vaiśyas because they had no time to spend making a living. The kṣatriyas would collect taxes from the vaiśyas and śūdras, but the brāhmaṇas were exempt from paying income tax or land revenue. That system of human society was so nice that there were no political, social and economic upheavals. The different castes, or varṇa classifications, are therefore essential for maintaining a peaceful human society.

(SRIMAD BHAGAVATAM-------3:6:32------PURPORT).

Agriculture is the noblest profession. It makes society happy, wealthy, healthy, honest, and spiritually advanced for a better life after death. The vaiśya community, or the mercantile class of men, take to this profession. In Bhagavad-gītā the vaiśyas are described as the natural agriculturalists, the protectors of cows, and the general traders. When Lord Śrī Kṛṣṇa incarnated Himself at Vṛndāvana, He took pleasure in becoming a beloved son of such a vaiśya family. Nanda Mahārāja was a big protector of cows, and Lord Śrī Kṛṣṇa, as the most beloved son of Nanda Mahārāja, used to tend His father's animals in the neighboring forest. By His personal example Lord Kṛṣṇa wanted to teach us the value of protecting cows. Nanda Mahārāja is said to have possessed nine hundred thousand cows, and at the time of Lord Śrī Kṛṣṇa (about five thousand years ago) the tract of land known as Vṛndāvana was flooded with milk and butter. Therefore God's gifted professions for mankind are agriculture and cow protection.
Trade is meant only for transporting surplus produce to places where the produce is scanty. But when traders become too greedy and materialistic they take to large-scale commerce andindustry and allure the poor agriculturalist to unsanitary industrial towns with a false hope of earning more money. The industrialist and the capitalist do not want the farmer to remain at home, satisfied with his agricultural produce. When the farmers are satisfied by a luxuriant growth of food grains, the capitalist becomes gloomy at heart. But the real fact is that humanity must depend on agriculture and subsist on agricultural produce.

No one can produce rice and wheat in big iron factories. The industrialist goes to the villagers to purchase the food grains he is unable to produce in his factory. The poor agriculturalist takes advances from the capitalist and sells his produce at a lower price. Hence when food grains are produced abundantly the farmers become financially stronger, and thus the capitalist becomes morose at being unable to exploit them.

(LIGHT OF THE BHAGAVATA).

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