Prabhupada: Ah. Svanusthitasya dharmasya samsiddhir hari-tosanam [SB 1.2.13]. Everyone has got different type of activities. Formerly it was divided into four: the brahmana activity, the ksatriya activity, the vaisya activity, and the sudra activity. Now it has been developed at the present moment, so many. But if you again connect all of them, they will come to the same categories or divisions. Some intelligent class of men, they are working day and night about understanding the Absolute Truth or the truth. Just like the theosophists, the philosophers, the theologists, the scientists, so many brain workers, they are working to discover better way of life, how the human society should be more and more happy. So this is the work of the brahmanas. But nowadays the brain is not utilized for understanding Brahman, but for understanding the ways of higher standard of life, sense gratification. Anyway, that is intelligent work. Next the administrative work. Next the productive work. And next the worker, general worker. The same brahmana, ksatriya, vaisya, sudra.   (More...)