When we speak of social change in China we most often have in mind one or the other of two pictures. The first is the change that we see today, when radically new ideas, techniques and forces from foreign countries have shaken the traditional social order, altering the old patterns rapidly and sometimes violently. The second picture is that of the dynastic cycle, a concept that we have inherited from the traditional Chinese historian, sometimes adding a few embellishments of our own. The political fortunes of a ruling house are often reflected (and perhaps affected) by a characteristic cycle in the whole political and economic order of the nation: from successful adjustment and control to maladjustment and chaos. The end of each cycle, if we focus our attention only on these factors, leaves Chinese society much as it was at the end of the cycle before. But this perspective tends to omit qualitative changes that occur in Chinese society on a different plane.