医者在面对患者时,若怀有恻隐不忍之心,之后才可以谈论“仁”。若能既怀有不忍之情,又能克制情感做出理性决断,之后才可以谈论“明”(明智)。大概来说,“仁”是用来修养自身品德的,而“明”是用来处理具体事务和判断病情的。凡是那些病情确实无法救治的情况,如果医者却强行去救治,必定是心中有所执念且以往有过类似经验,但究其结果终究不如自己所愿,这也是无可奈何之势。与其处于无可奈何的境地,不如尽早做出决择。然而,之所以不能做出决择的原因有两个:一是沉溺于亲情或喜爱之情,不忍心立刻放弃治疗,于是千方百计地谋求治疗,思虑再三或许能侥幸得到一丝希望,从而内心纠结痛苦的人有之;二是为了追求丰厚利益,不肯立刻断然停止治疗,于是用花言巧语来掩饰病情,期望在偶然的成功中获利,从而招致他人诽谤的人有之。因此,当危重笃实的证候已经明确诊断后,决择应当及早进行,此时利益与私爱都可以不必过问。至于那些不通晓脉理、不审察疾病源流,却妄自断定吉凶的人,这是庸俗浅陋的习气,不足以列入决择的范畴,又怎能借以标榜自己清高呢?
A physician must possess a heart of compassion (Ren, benevolence) to be able to speak of "Ren." Only when one can maintain this compassion while simultaneously exercising the ability to restrain it for rational decision-making can one speak of "Ming" (clarity/wisdom). Generally, "Ren" is used to cultivate one's own moral character, whereas "Ming" is employed to manage affairs and judge pathological conditions. In cases where a disease is truly incurable, if a physician insists on treating it, it is often due to internal attachment or past experiences that have proven futile in the end; such situations are ultimately beyond control. Rather than remaining in a state of helplessness, it is preferable to make decisive choices early. However, there are two main reasons why physicians fail to make such decisions: first, being indulged by affection for relatives or patients, they cannot bear to give up treatment immediately, resorting to every possible means to seek a cure, hoping against hope, which leads to inner torment; second, driven by greed for profit, they refuse to discontinue treatment promptly, using deceptive words to cover up the reality, hoping for accidental success, which invites public criticism. Therefore, once critical and severe symptoms are clearly identified, decisions should be made promptly, disregarding personal gain or affection. As for those who blindly predict outcomes without understanding pulse diagnosis (Maili) or tracing the origin of diseases, their behavior reflects vulgar and ignorant habits. Such individuals are unworthy of being considered in the realm of proper medical judgment, let alone claiming moral superiority.