《黄帝内经·素问·示从容论》
雷公问：另有一个病人，四肢懈怠无力，气喘、咳嗽而大便出血，我初步诊断的结果是肺病，其脉象是浮大而紧也与病症相符，但我还是未敢治疗。
雷公曰：于此有人四肢懈堕，喘嗽，血泄，而愚诊之以为伤肺，切脉浮大而紧，愚不敢治。
Master Lei asked: There is another patient who suffers from weakness and fatigue in the limbs, shortness of breath, coughing, and bloody stools. My initial diagnosis is that it is a disease of the lungs, and his pulse is floating, large, and tight, which corresponds to the symptoms, but I still dare not treat him.