《史记·七十列传·汲郑列传》
郑庄喜爱道家学说，仰慕年高有德的人，那种情意殷切的劲儿，就好像惟恐见不到人家一样。
庄好黄老之言，其慕长者如恐不见。
Zheng Zhuang loved Taoist teachings and admired people of high morality and great age, and his affection was so earnest that it was as if he were afraid that he would not be able to see the person. 