《史记·七十列传·扁鹊仓公列传》
济北王派太医高明、王禹向我求教，我教给他们经脉上下分布的情形和异常脉络的连结位置，常常论说腧穴所处的方位，以及经络之气运行时的邪正顺逆的情况，怎样选定针对病症需要砭石针炙治疗的穴位，学了有一年多。
济北王遣太医高期、王禹学，臣意教以经脉高下及奇络结，当论俞所居，及气当上下出入邪逆顺，以宜鑱石，定砭灸处，岁馀。
King Jibei sent imperial physicians Gao Ming and Wang Yu to study with me. I taught them the distribution of meridians, the connection between abnormal meridians, and often discussed the location of acupuncture points, the normal and abnormal flow of qi in the meridians, and how to select acupuncture points for the treatment of diseases. They studied for more than a year.