Knowledge which ... transcends the bounds, the prejudices and prejudgements of any one society and culture is not an illusion but, on the contrary, a… - Ernest Gellner

In brief, nationalism is a theory of political legitimacy, which requires the ethnic boundaries should not be cut across political ones, and, in particular, that ethnic boundaries within a given state — a contingency already formally excluded by the principle in its general formulation — should not separate the power holders from the rest.

The new perspective also manifested itself in other ways: the shift of attention to sociologists such as Max Weber who were primarily concerned, not with overall 'development', but with the one specific development, that of modern society; the tendency to be concerned with those aspects of Marxism relevant to this one transition, and to ignore its Evolutionist aspects; and, recently and most characteristically, the concern with the notion of industrial society, and its antithesis, to the detriment of other classifications, oppositions and alternatives.

In the twentieth century, the essence of man is not that he is a rational, or a political, or a sinful, or a thinking animal, but that he is an industrial animal. It is not his moral or intellectual or social or aesthetic ... attributes which make man what he is. His essence resides in his capacity to contribute to, and to profit from, industrial society. The emergence of industiral society is the prime concern of sociology.