"Discussing the early Vedic period, V.M. Apte says that the Rig Veda refers to the varnas in a way that cannot be considered discriminatory or hierarchical. He concludes that the Brahmins did not constitute an exclusive caste or race and the prerogative of composing hymns and officating at the services of the deities in the age of the Rig Veda was not entirely confined to men of priestly families. Even the other vocations such as being a poet or a physician were more flexible. Apte emphasizes that in the Rig Veda, there is not even a remote hint of prohibitions of inter-dining or intermarrying among the varnas; these are the prohibitions that have been considered the most serious forms of oppression in recent times."