a social construct used to contrast past with the present and as a form of rationality used to justify certain course of action. Traditional society is characterized by lack of distinction between family and business, division of labor influenced primarily by age, gender, and status, high position of custom in the system of values, self-sufficiency, preference to saving and accumulation of capital instead of productive investment, relative autarky. Early theories positing the simple, unilineal evolution of societies from traditional to industrial model are now seen as too simplistic. In 1981, Edward Shils in his book Tradition put forward a definition of tradition that became universally accepted. According to Shils, tradition is anything which is transmitted or handed down from the past to the present. Another important sociological aspect of tradition is the one that relates to rationality. It is also related to the works of Max Weber (see theories of rationality), and were popularized and redefined in 1992 by Raymond Boudon in his book Action. In this context tradition refers to the mode of thinking and action justified as "it has always been that way". This line of reasoning forms the basis of the logical flaw of the appeal to tradition (or argumentum ad antiquitatem), which takes the form "this is right because we've always done it this way." In most cases such an appeal can be refuted on the grounds that the "tradition" being advocated may no longer be desirable, or, indeed, may never have been despite its previous popularity. Philosophy The idea of tradition is important in philosophy. Twentieth century philosophy is often divided between an 'analytic' tradition, dominant in Anglophone and Scandinavian countries, and a 'continental' tradition, dominant in German and Romance speaking Europe. Increasingly central to continental philosophy is the project of deconstructing what its proponents, following Martin Heidegger, call 'the tradition', which began with Plato and Aristotle. In contrast, some continental philosophers - most notably, Hans-Georg Gadamer - have attempted to rehabilitate the tradition of Aristotelianism. This move has been replicated within analytic philosophy by Alasdair MacIntyre. However, MacIntyre has himself deconstructed the idea of 'the tradition', instead posing Aristotelianism as one philosophical tradition in rivalry with others. In political and religious discourse The concepts of tradition and traditional values are frequently used in political and religious discourse to establish the legitimacy of a particular set of values. In the United States in the twentieth