"This social system did not exist in isolation. Thus, centuries of foreign domination must have had an impact on it. We can say a priori that when leading groups in society come to groan under the weight of foreign oppression, they themselves will weigh heavier on the lower groups.... A society that is put on the defensive, will harden and develop internal friction. Again it may sound like an easy explanation, but it is just quite plausible that a part of the inhuman traits of the caste system as recent generations found it, must be attributed to later outside influences like the impoverishing, brutalizing and demoralizing effect of Muslim rule. ... The essence of Varnashramadharma, the social philosophy that allots different duties to differently minded groups of people, as well as to the different age-groups, and that allows communities to develop at intermediary levels between individual and state, is quite the opposite of the uniformization so typical of totalitarian systems."