《易传·彖传下·既济》
既济， 亨通 ，小事而能亨通。 利于守正 ，阳刚阴柔之位皆正当。 起初吉利 ，阴柔居中， 终 停止则必 乱 。
既济亨，小者亨也。利贞，刚柔正而位当也。初吉，柔得中也。
Ji ji, advantageous. In small matters there will be good fortune. It will be advantageous to maintain the correct line of conduct. The place of the strong and the weak is correct. At first there is good fortune, the soft is in the middle, at the end there will be disorder.