《黄帝内经·灵枢·逆顺》
技术低劣的医生，在症状叠发时才予以针治，或是在病势正盛时予以针治，或是在病的外部表现与脉象相反时予以针治。
下工刺其方袭者也，与其形之盛者也，与其病之与脉相逆者也。
A doctor with poor skills only treats with acupuncture when the symptoms are superimposed, or when the disease is at its peak, or when the external manifestations of the disease and the pulse are opposite.