Judgment [lun cai] and mind [zhi yi] must be based upon laws and rules. If one follows the classics, observing the calculations and accordingly practicing [medicine] with due reverence, this will be of benefit and set an example for all humankind. If the way is carefully observed, a myriad of diseases can be cured. QI and blood will assume a proper balance and the mandate of Heaven will last long.
Regarding Rules & Judgment:
If one punishes where there is no transgression, this is called a great error. • If one rebels against the grand norms, true QI can not be restored. • If a practitioner treats a repletion as if it were a depletion, if s/he considers evil QI as if it were true QI, and if s/he [applies needles] disregarding what is right to do, s/he plunders QI, and in that, removes proper QI [of the patient].
SuWen Ch.70, Based on Translations by Paul Unschuld