In Part II of the “Commentary on the Appended Judgments” in the Book of Changes, there is a line that says, “The principle of the Book of Changes is that when a matter has run its course (qiong), it will change (bian). Through change, it will move forward and develop, and through this process achieve duration.” The term qiong (a matter running out its course) is relative to the term bian (to change), and means “to reach the end,” “to finish,” “end point,” or “to be in dire straits”; and the term bian means “to change,” “to transform,” “to create,” and could even mean “to return”. Qiong and bian can be seen as complementary opposites, regulating advancement and permanence. For a country, a group or an individual, to seize the opportunity for a breakthrough in a difficult situation often opens up new paths of regeneration. Therefore, period change, regime replacement, institutional evolution, succession of intellectual systems, new developments in literary forms and schools, shifts in social class, economic reform, etc., can all be discussed under the topic of “limits and mutations”.