The Brahmans, therefore, were a body of men who, in an early stage of this world's history, bound themselves by a rule of life the essential precepts of which were self-culture and self-restraint. The Brahmans of the present India are the result of 3000 years of hereditary education and temperance; and they have evolved a type of mankind quite distinct from the surrounding population. Even the passing traveller in India marks them out, alike from the bronze-cheeked, large-limbed, leisure-loving Rajput or Kchatryas, the warrior caste of Aryan descent; and from the dark-skinned, flat-nosed, thick-lipped low castes of non-Aryan origin, with their short bodies and bullet heads. The Brahman stands apart from both, tall and slim, with finely-modelled lips and nose, fair complexion, high forehead, and slightly cocoanut shaped skull—the man of self-centred refinement. He is an example of a class becoming the ruling power in a country, not by force of arms, but by the vigor of hereditary culture and temperance. One race has swept across India after another, dynasties have risen and fallen, religions have spread themselves over the land and disappeared. But since the dawn of history the Brahman has calmly ruled; swaying the minds and receiving the homage of the people, and accepted by foreign nations as the highest type of Indian mankind. The position which the Brahmans won resulted in no small measure from the benefits which they bestowed. For their own Aryan countrymen they developed a noble language and literature. The Brahmans were not only the priests and philosophers, but also the lawgivers, the men of science and the poets of their race. Their influence on the aboriginal peoples, the hill and forest races of India, was even more important. To these rude remnants of the flint and stone ages they brought in ancient times a knowledge of the metals and the gods.
As a social league, Hinduism arranged the people into the old division of the "Twice-born" Aryan castes, namely, the Brahmans, Kchatryas, Vaisyas; and the "Once-born" castes, consisting of the non-Aryan Sudras and the classes of mixed descent. This arrangement of the Indian races remains to the present day. The "Twice-born" castes still wear the sacred thread, and claim a joint, although an unequal, inheritance in the holy books of the Veda. The "Once-born" castes are still denied the sacred thread; and they were not allowed to study the holy books, until the English set up schools in India for all classes of the people. But while caste is thus founded on the distinctions of race, it has been influenced by two other systems of division, namely, the employments of the people, and the localities in which they live. Even in the oldest times, the castes had separate occupations assigned to them. They could be divided either into Brahmans, Kchatryas, Vaisyas, and Sudras; or into priests, warriors, husbandmen, and serfs. They are also divided according to the parts of India in which they live. Even the Brahmans have among themselves ten distinct classes, or rather nations. Five of these classes or Brahman nations live to the north of the Vindhya mountains; five of them live to the south. Each of the ten feels itself to be quite apart from the rest; and they have among themselves no fewer than 1886 subdivisions or separate Brahmanical tribes. In like manner, the Kchatryas or Rajputs number 590 separate tribes in different parts of India.
While, therefore, Indian caste seems at first a very simple arrangement of the people into four classes, it is in reality a very complex one. For it rests upon three distinct systems of division: namely, upon race, occupation, and geographical position. It is very difficult even to guess at the number of the Indian castes. But there are not fewer than 3,000 of them which have separate names, and which regard themselves as separate classes. The different castes cannot intermarry with each other, and most of them cannot eat together. The ordinary rule is that no Hindu of good caste can touch food cooked by a man of inferior caste. By rights, too, each caste should keep to its own occupation. Indeed, there has been a tendency to erect every separate kind of employment or handicraft in each separate province into a distinct caste. But, as a matter of practice, the castes often change their occupation, and the lower ones sometimes raise themselves in the social scale. Thus the Vaisya caste were in ancient times the tillers of the soil. They have in most provinces given up this toilsome occupation, and the Vaisyas are now the great merchants and bankers of India. Their fair skins, intelligent faces, and polite bearing must have altered since the days when their forefathers ploughed, sowed, and reaped under the hot sun. Such changes of employment still occur on a smaller scale throughout India.