分久必合,合久必分
Contents
Long period of division together, together for a long time to divide
  Explanation: Volatility of a person or thing, division and no fixed.
  Source: "Three Kingdoms" first round: "saying that the world trend, long period of division together, together for a long time to divide."
  Examples: This is Theorem ~ in the world. ★ "Xueyan biography" Twelfth Back
Person or thing that the volatility of division and no fixed
  Person or thing that the volatility of division and amorphous. "Three Kingdoms" first chapter: "the words of Domains under heaven, after a long period, together for a long time will be divided." "Xueyan rumor," the 12th back: "This is the long period of division, together for a long time, tends to divide the world Theorem. That if the original master in Ningbo, when two masters are waiting in Suzhou, three masters and four master has each one, is this could have been combined into one place? now combined in a while, long time, finally Mian Bude big tree branches out to live more points. "
Translated by Google
No. 3
  fēn jiǔ bì hé,hé jiǔ bì fēn
  〖解释〗指人或事物变化无常,分合无定。
  〖出处〗《三国演义》第一回:“话说天下大势,分久必合,合久必分。”
  〖示例〗这也是~的天下定理。 ★《雪岩外传》第十二回