Geir Sigurosson offers a reconsideration of li, often translated as "ritual" or "ritual propriety," one of the most controversial concepts in Confucian philosophy. Strong associations with the Zhou period during which Confucius lived have put this concept at odds with modernity's emphasis on progressive rationality and liberation from the yoke of tradition. Sigurosson notes how the Confucian perspective on learning provides a more balanced understanding of li. He goes on to discuss the limitations of the critique of tradition and of rationality's claim to authority, referencing several Western sources, notably Hans-Georg Gadamer, John Dewey, and Pierre Bourdieu. An exposition of the ancient Chinese worldview of time and continuous change further points to the inevitability of li's adaptable and flexible nature. Sigurosson argues that Confucius and his immediate followers did not endorse a program of returning to the Zhou tradition, but rather of reviving the spirit of Zhou culture, involving active and personalized participation in tradition's sustention and evolution.