出处:《左传·隐公元年》:“多行不义必自毙,子姑待之。”春秋时期的郑国国君武公在申国娶妻,名叫武姜,生了庄公和共叔段。庄公出生时,脚先出来,头后出来,这是难产,姜氏很惊讶,因此给他取名叫“寤生”,并且很讨厌他。姜氏喜爱共叔段,想立他为太子,屡次向武公请求,武公不肯答应 Source: “Year of the Zuo Yin hidden year”: “Many lines of injustice will be killed, aunt treat it.” Spring and Autumn period of the kingdom of Guogong Jun Wugu married in China, named Wu Jiang, gave birth to Zhuang and A total of tertiary section. Zhuang was born, the first foot out, head back out, it is difficult to deliver, ginger was very surprised, so give him the name of “Health” and hate him. Jiang loves a total of tertiary section, want to establish him as a prince, repeatedly requested to the Wu Gong, Wu Gong refused to promise