病可以速效致者。必惟元气壮盛。诸气未亏。或偶感三阳表证。与乎饮食
内伤。及暴受寒冷者。治不数剂。便得痊可。至于五痨七伤六极重恙。若肯精修确服纯王善
药。渐涵数载。方有生机。尚亦有不治者。敢用杂霸异术。攻击眼前。大伤元气。旋即倒戈
败绩者乎。吴文定公家藏集云∶陈汝中尝病脾胃郁火之症。求治于盛用美。诊其脉曰如此治
可生。如彼治即死。如此治可以少生。如彼治可以速死。既而治之。汝中迟其效。或以浮屠
善医荐者。汝中惑其说。遂求治。饮其药。呕血一升遂死。噫医以用药。药以攻病。病不能
去而反以致死。则何以医药。为哉彼浮屠者悉庸妄人也。目不识医经。口不辨药性。指不察
脉候。人之虚实。病之新久。一切置之不问。而惟毒药攻击之。其杀人盖亦多矣。予咎汝中
之不善。择医而致速死特书此以为世轻服药者之戒。
今夫医者病者。每获一方一药之善。谓能通治众疾。不啻窭丐之获异宝。珍
秘自矜。岂知滋害为甚。抑何懵懵不会也。夫人有贫富贵贱之殊。老少强弱之禀。病有新
久虚实。藏有阴藏阳藏。土地高下不一。物理刚柔异宜。黄帝兴四方之问。岐伯举四治之能。
临病之师。宜须细审。尚有一病而投数方。未有一方可疗数病者。罗太无云∶用古方治今病
。政如拆旧屋揍新屋。其材木非一。不用经匠氏之手。其可用乎。许叔微释微论曰予读仲景
书用仲景法。然未尝守仲景之方乃为得仲景之心也。语云学方三年无病可医学医三年无方可学旨哉言乎。
疾病能够迅速见效的，必定是元气壮盛、诸气未亏损，或者是偶尔感受三阳经表证，以及饮食内伤，和突然受寒的人。治疗不需要几剂药，就能痊愈。至于五痨、七伤、六极等重症，如果肯精心修养并确实服用纯正有效的药物，慢慢调养数年，才会有生机。即便如此，也还有无法治愈的情况。难道敢用杂乱霸道、标新立异的技术，急于攻击眼前的症状，从而大伤元气，随即导致病情恶化失败的吗？吴文定公的家藏集记载：陈汝中曾患脾胃郁火之症，向盛用美求治。盛用美诊脉后说：“像这样治疗可以生，像那样治疗就会死。像这样治疗可以稍微延长生命，像那样治疗可以快速致死。”后来进行治疗，陈汝中觉得疗效缓慢，有人推荐精通医术的僧人（浮屠），陈汝中被其说法迷惑，于是去求治。喝了那僧人的药后，呕吐一升血而死。唉！医生用药，是为了攻治病邪。病不能去除反而导致死亡，那还要医药做什么呢？那个僧人完全是平庸狂妄之人，不认识医经，辨不清药性，摸不准脉候。人的虚实、病的新久，一概不过问，只一味用毒药攻击，他杀的人大概也很多了。我责备陈汝中不善于选择医生而导致快速死亡，特意写下此文，作为世人轻视服药的警戒。
现在的医生和病人，往往得到一方一药的妙处，就认为能通治各种疾病，就像乞丐获得奇珍异宝一样，珍贵地秘密珍藏并自我夸耀。哪里知道这造成的危害极大，为何如此懵懂无知呢？人有贫富贵贱的不同，老少强弱的禀赋差异，病有新久虚实之分，脏腑有阴脏阳脏之别，土地有高下不一，物理刚柔适宜各异。黄帝提出四方之问，岐伯列举四治之能。面对疾病的大夫，应当仔细审察。尚且有一病而投用数方，没有一方可以治疗数病的情况。罗太无说：“用古方治今病，就像拆旧屋建新房，木材并非同一来源，如果不经过工匠之手，能用吗？”许叔微在《释微论》中说：“我读仲景的书，用仲景的法，然而并不拘守仲景的方，这才是得仲景的心意啊。”俗语说：“学方三年，无病可医；学医三年，无方可用。”这话真是意义深远啊。
Diseases that can be cured rapidly must involve robust Yuan Qi (Original Qi) and unimpaired Qi, or cases of occasional exterior syndromes of the Three Yang meridians, dietary injuries, or sudden exposure to cold. Treatment requires only a few doses for recovery. As for severe conditions such as the Five Wasting-and-Thirst disorders (Wu Lao), Seven Injuries (Qi Shang), and Six Extremities (Liu Ji), if one is willing to cultivate carefully and take pure, effective medicines consistently over several years, there may be a chance for survival. Even so, some remain incurable. How could one dare to use eclectic, aggressive, and unconventional methods to attack immediate symptoms, thereby severely damaging Yuan Qi and leading to rapid deterioration? The Family Collection of Duke Wu Wending records: Chen Ruzhong once suffered from Stomach-Spleen Stagnant Fire syndrome and sought treatment from Sheng Yongmei. After palpating his pulse, Sheng said, "If treated this way, he will live; if treated that way, he will die. If treated this way, he may survive slightly longer; if treated that way, he may die quickly." Later, during treatment, Chen felt the efficacy was slow. Someone recommended a monk proficient in medicine. Chen, confused by these words, sought treatment from him. After drinking the monk's medicine, he vomited a sheng (approx. 1 liter) of blood and died. Alas! Physicians use medicine to attack disease. If the disease cannot be removed but instead leads to death, what is the purpose of medicine? That monk was entirely mediocre and arrogant; he did not understand medical classics, could not distinguish drug properties, and failed to examine pulse conditions. He ignored the patient's deficiency or excess and the newness or chronicity of the disease, relying solely on toxic drugs to attack. He likely killed many people. I blame Chen Ruzhong for his poor choice of physician, which led to his quick death. I record this specifically as a warning to those who take medicine lightly.
Physicians and patients today often obtain a good prescription or herb and believe it can treat all diseases indiscriminately, like a beggar finding a rare treasure, keeping it secret and boasting about it. They do not realize that this causes great harm. How ignorant they are! People differ in poverty, wealth, status, age, strength, and constitution. Diseases vary in duration, deficiency, and excess. Zang organs differ in Yin and Yang characteristics. Lands vary in elevation, and physical properties suit different conditions. The Yellow Emperor raised questions regarding the four directions, and Qibo demonstrated abilities in four treatments. Physicians facing illness must examine carefully. There are instances where one disease requires multiple prescriptions, but never one prescription cures multiple diseases. Luo Taiwu said, "Using ancient formulas to treat modern diseases is like dismantling an old house to build a new one; the timber is not uniform. Without the work of a skilled carpenter, can it be used?" Xu Shuwei, in *Shi Wei Lun*, stated, "I read Zhang Zhongjing's books and use his methods, yet I do not rigidly adhere to his formulas; this is truly grasping Zhang Zhongjing's intent." The saying goes, "Study formulas for three years, and there will be no sick people to treat; study medicine for three years, and there will be no fixed formulas to apply." These words are indeed profound.