《黄帝内经·灵枢·九针论》
黄帝说：我听先生你讲述的九针理论，内容真是博大精深，丰富多彩，但是我还有些问题不能领悟。请问九针是怎样产生的，又是根据什么命名的呢？
黄帝曰：余闻九针于夫子，众多博大矣，余犹不能寤，敢问九针焉生，何因而有名？
Huangdi said: I have listened to your explanations of the theory of the nine needles, and the content is really broad and profound, but there are still some questions that I can't understand. May I ask you how the nine needles came into being and on what basis they were named?