夫伤寒之病，医者多不审察病之本源，但只云病伤寒，即不知其始自阳气内郁结，而后为热病矣。自冬至之后，一
阳渐生，阳气微弱，犹未能上行，《易》曰潜龙勿用是也。至小寒之后，立春以前，寒毒杀厉之气大行时，中于人，则
传在脏腑，其内伏之阳，被寒毒所折，深浃于骨髓之间，应时不得宣畅。所感寒气浅者，至春之时，伏阳早得发泄，则
其病轻，名曰温病。感寒重者，至夏至之后，真阴渐发，其伏阳不得停留，或遇风寒，或因饮食沐浴所伤，其骨髓间郁
结者阳气，为外邪所引，方得发泄，伏阳既出肌肤，而遇天气炎热，两热相干，即病证多变，名曰热病。按《素问·生
气通天论》云冬伤于寒，注云冬寒且凝，春阳气发，寒不为释，阳怫于中，与寒相持，故病温。又《热论》云∶人之伤
于寒也，则病热。注云∶寒毒薄于肌肤，阳气不得散发，而内怫结，故伤寒者，反为热病也。以此证之，即伤寒之病，
本于内伏之阳为患也。
魏晋六朝、隋唐五季，以逮宋金元明，固无人不知仲师《伤寒论》为通治四时而设，独至康雍以降，别创温热之论，
而传足传手、六经三焦。妄生畛域，遂致后人之读其书者，误信首先创议之人大名炫赫，无不一例盲从，乃使世人之病
温热者，皆不得一尝仲圣方药，以致于危殆，何莫非妄分温热、伤寒为两事者有以杀之。呜呼！自叶香岩《温热》一论，
盛行于时，而后贤继起互有发明，间亦可以少补仲师《伤寒论》所未备，而初不料首先提倡之叶老，及首先着书之鞠通，
屏绝仲师成法，谬制新方，滋腻恋邪，有百害而无一利。举世不察，相沿成俗，误尽苍生，而终其身不一觉悟。则香岩
一人，实为温热病中，功之首而罪之魁。然究其贻祸之源，皆由于误认《伤寒论》一书为专治冬伤于寒之一念，有以成
此厉阶，而杀人遂不可胜数，是诚二百年之浩劫也。哀哉！至用犀角、地黄、玄参、麦冬诸物，最是叶老惯伎。《临证
指南》及顾氏所述之《温热论》，同符合辙，所见一误，而其祸蔓延遍于全国，流毒至今，作俑二字，断不容为此老讳。
彼吴子音之伪撰《三家医案》、《医效秘传》、《温热赘言》，及吴鞠通之《条辨》，则皆奉行此催命灵符，而充作钩魂之大
使者也。近贤王氏孟英治案，能不受叶派拘束，不愧一大方家。然《温热经纬》犹于叶氏作应声之虫，模模糊糊，汨没
真性，且有温热亦传足经而手经先受之语，亦隐隐为此老魔力吸住，不能自脱，则此老误人之罪，那不上通于天耶？又
按叶氏所以倡为三焦之论者，盖亦明知温病、热病，必多阳明在经在腑之症，无如既经一口咬定温热传手不传足，则胃
是足经，必不能自圆其说，于是无聊极思，提出三焦二字，冀与六经之说互为雄长。而又恐本作自造无以取信于天下，
乃更信口雌黄，伪托河间先有此说，隐隐然以自己所提之肺病、心病归于上焦，而即以世间恒有之阳明胃病归之中焦。
掩耳盗铃，其计不可谓不狡。然自欺欺人，终不能使天下后世不一读河间之书，则河间三焦之语，果何所本，臆说那不
立穷？作伪而敢于浓诬古人，直是栽脏陷害手段。陆九芝谓嘉言论温三篇，可剐可杀，愚谓亦当移赠叶老。鞠通不学，
竟以谰言作为鸿秘，尤其可笑。然耳食之徒，皆奉此两家，宝若兔园册子，而所谓叶派者，遍于中国。此温热之病在阳
明者，所以一病一死，十病十死，而几于百不一愈也。哀哉！
伤寒这类疾病，医生们大多不仔细审察疾病的本源，只是笼统地说这是患上了伤寒，却不知道它起初是由于阳气在体内郁结，随后才演变为热病。从冬至之后开始，一阳初生，此时阳气微弱，还不足以向上运行，《易经》所说的“潜龙勿用”正是这个意思。到了小寒之后、立春之前，寒毒凛冽之气盛行，人体一旦受邪，病气就会传入脏腑，导致体内潜伏的阳气被寒毒遏制，深深陷入骨髓之间，无法按时宣通畅达。感受寒气较浅的人，到了春季，潜伏的阳气得以较早发泄，病情就较轻，这种病称为温病。感受寒气较重的人，要到夏至之后，真阴之气逐渐发动，潜伏的阳气无法继续停留，或者又遇到风寒侵袭，或因饮食、沐浴不当而受伤，骨髓间郁结的阳气被外邪引动，才得以发泄。当潜伏的阳气透出肌肤，又遇上天气炎热，内外两股热邪相互交争，病症变化多端，这种病称为热病。
按照《素问·生气通天论》所说：“冬伤于寒”，注释说：冬季寒气凝滞，到了春季阳气升发，但寒气并未消散，阳气郁结于内，与寒气相持不下，所以会得温病。又如《热论》所说：“人伤于寒，则病为热。”注释说：寒毒侵薄肌肤，阳气不能散发，反而在内部郁结，所以患伤寒的人，反而变成了热病。据此验证，可知伤寒这类疾病，其根本在于体内潜伏的阳气作祟。
从魏晋六朝，经过隋唐五代，直到宋金元明，本来没有人不知道张仲景的《伤寒论》是通治四季疾病的准则。唯独到了清朝康熙、雍正年间以后，有人另创温热病的理论，区分足经和手经、三焦辨证，妄自划分界限，致使后世读者误信首倡者大名显赫，无不盲目跟从，使得世人生患温热病的人，都不能尝试使用仲景的方药，从而导致病情危重危险，这难道不是那些妄将温热病和伤寒病分为两回事的人造成的祸害吗？唉！自从叶天士的《温热论》盛行于世，后辈学者相继兴起，各有发明，偶尔也能稍微补充仲师《伤寒论》中未详尽之处，却未曾料到首倡的叶天士以及首部著书的吴鞠通，排斥摒弃仲景的成法，谬造新方，药物滋腻恋邪，只有百害而无一利。举世之人不加考察，沿袭成为习俗，误导了无数百姓，而他们至死都不觉悟。那么叶天士一人，实为温热病领域中功劳之首、罪过之魁。然而追究祸患的根源，都源于错误地认为《伤寒论》一书专门治疗冬季感受寒邪这一念头，从而酿成大错，杀人无数，这确实是二百年的浩劫啊！悲哀啊！至于使用犀角、地黄、玄参、麦冬等药物，最是叶天士惯用的伎俩。《临证指南医案》及顾氏所述的《温热论》，观点完全一致，所见之误，导致祸患蔓延遍及全国，流毒至今，“作俑”二字，绝对不容许为这位老先生讳言。至于吴子音伪撰的《三家医案》、《医效秘传》、《温热赘言》，以及吴鞠通的《温病条辨》，都是奉行这种催命符，充当勾魂的大使者。近代的贤者王孟英诊治案例，能不受叶派拘束，不愧为一位大方家。然而他的《温热经纬》仍然像叶氏的应声虫一样，模模糊糊，泯灭真性，并且还有“温热病也传足经，且手经先受邪”的说法，也隐隐地被这位老先生的魔力吸住，不能自拔，那么这位老先生误人的罪过，哪能不直通于天呢？
另外，按叶氏之所以提倡三焦辨证，大概也是明知温病、热病，必然多有阳明经证和腑证的症状，无奈既然已经一口咬定温热病只传手经不传足经，那么胃属于足经，必然无法自圆其说，于是极尽无聊之思，提出“三焦”二字，希望与六经学说互为抗衡。而又担心自己凭空捏造无法取信于天下，于是更是不顾事实，伪造托辞说刘河间先前就有此说，隐隐地将自己所提出的肺病、心病归为上焦，而将世间常见的阳明胃病归为中焦。掩耳盗铃，其计谋不可谓不狡猾。然而自欺欺人，终究不能让天下后世不去读刘河间的书，那么刘河间关于三焦的言论，究竟有什么依据？这种臆测之说怎能不破产？伪造谎言而敢于严重诬蔑古人，简直是栽赃陷害的手段。陆九芝说刘河间论述温病的三篇文章，该剐该杀，我认为这话也应该送给叶天士。吴鞠通不学无术，竟把谰言当作鸿篇秘籍，尤其可笑。然而那些道听途说之徒，都奉这两家为宝，视若珍籍，以至于所谓的“叶派”，遍布中国。这就是为什么温热病属于阳明经的病例，往往一病就死，十病十死，几乎百无一愈的原因啊！悲哀啊！
In diseases of cold damage (Shanghan), physicians often fail to carefully examine the root cause of the illness. They merely state that it is a case of "cold damage," unaware that it originates from the internal stagnation and knotting of Yang Qi, which subsequently transforms into a heat disease. After the Winter Solstice, the generation of one Yang begins; at this time, Yang Qi is weak and insufficient to ascend upward, as described in the *I Ching* (Book of Changes): "The hidden dragon does not act." By the time after Minor Cold until before Start of Spring, when the killing and severe qi of cold toxins prevails, if humans are affected, the pathogen transmits to the Zang-Fu organs. The internally latent Yang Qi is suppressed by the cold toxin, sinking deep into the marrow, failing to circulate freely according to the seasonal timing. For those who contracted shallow cold, by spring, the latent Yang can be released early, resulting in a milder illness named warm disease (Wenbing). For those who contracted heavy cold, by after Summer Solstice, when True Yin gradually emerges, the latent Yang cannot remain stagnant. If triggered by external wind-cold or injured by improper diet or bathing, the Yang Qi knotted in the marrow is drawn out by external pathogens and finally released. Once the latent Yang emerges to the skin and muscle layer, and encounters hot weather, the two heats interfere with each other, leading to varied symptoms, named heat disease (Rebing).
According to the *Suwen: Shengqi Tongtian Lun* (Plain Questions: Treatise on the Communication of Vital Energy with Heaven), it states: "Winter injury by cold." The annotation explains: Winter cold is condensing; in spring, Yang Qi erupts, but the cold is not dissipated. Yang is blocked internally, contending with cold, thus causing warm disease. Furthermore, the *Rebing Lun* (Treatise on Heat Diseases) states: "When humans are injured by cold, they suffer from heat." The annotation explains: Cold toxins attack the skin and muscles, preventing Yang Qi from dissipating, causing internal blockage and knotting. Therefore, those suffering from cold damage instead develop heat diseases. Based on this verification, it is evident that the disease of cold damage fundamentally stems from the harm caused by internally latent Yang Qi.
From the Wei, Jin, Southern and Northern Dynasties, through Sui, Tang, Five Dynasties, up to Song, Jin, Yuan, and Ming, no one was unaware that Zhang Zhongjing's *Shanghan Lun* (Treatise on Cold Damage) was designed for treating illnesses across all four seasons. However, since the Kangxi and Yongzheng reigns of the Qing Dynasty, theories of warm-heat diseases were newly created, distinguishing between Foot and Hand meridians, and San Jiao (Triple Burner) differentiation. This arbitrarily created boundaries, causing later readers to blindly follow due to the fame of the originators. Consequently, patients suffering from warm-heat diseases were denied the opportunity to try Zhang Zhongjing's prescriptions, leading to critical and dangerous conditions. Is this not the result of those who wrongly divided warm-heat diseases and cold damage into two separate entities? Alas! Since Ye Tianshi's *Wenre Lun* (Discourse on Warm-Heat) became prevalent, later scholars rose successively with various innovations, occasionally supplementing what was incomplete in Zhang Zhongjing's *Shanghan Lun*. Yet, no one anticipated that the initiator, Old Master Ye (Ye Tianshi), and the first author, Wu Jutong, would reject Zhang Zhongjing's established methods, erroneously create new formulas, and use cloying and sticky herbs that retain pathogens, doing more harm than good. The world failed to investigate, allowing this to become custom, misleading the common people, yet they remained unawakened throughout their lives. Thus, Ye Tianshi alone is indeed the chief of merit and the head of guilt in the field of warm-heat diseases. However, tracing the source of this disaster, it all stems from the mistaken belief that the *Shanghan Lun* is exclusively for treating winter cold injuries. This single thought led to this disastrous precedent, resulting in countless deaths. It is truly a catastrophe spanning two hundred years. How sorrowful! As for the frequent use of Rhinoceros Horn (Xijiao), Rehmannia Root (Dihuang), Scrophularia Root (Xuanshen), and Ophiopogon Tuber (Maidong), these are Ye Tianshi's habitual techniques. The *Lin Zheng Zhi Nan Yi An* (Clinical Guide to Medical Cases) and Gu Shi's *Wenre Lun*, though differing in text, share the same erroneous viewpoint, causing disasters to spread nationwide, with toxic effects lasting to this day. The term "originator" (Zuoyong) absolutely forbids shielding this old master from blame. Regarding Wu Ziyin's forged works *San Jia Yi An* (Medical Cases of Three Masters), *Yi Xiao Mi Chuan* (Secret Transmission of Medical Efficacy), *Wenre Zhuo Yan* (Superfluous Remarks on Warm-Heat), and Wu Jutong's *Tiaobian* (Differentiation), they all implement this life-ending talisman, acting as major envoys of the underworld. In recent times, the worthy physician Wang Mengying's cases show he was not constrained by the Ye school, proving himself a true great master. However, his *Wenre Jingwei* (Classic and Comprehensive Works on Warm-Heat) still acts like an echo to Ye's views, vague and obscuring true nature. He even stated that warm-heat diseases also transmit to Foot meridians, and Hand meridians are affected first. This shows he was subtly ensnared by this old master's magic power, unable to free himself. Then how can this old master's crime of misleading people not reach heaven?
Furthermore, regarding why Ye advocated the San Jiao theory: he likely knew well that warm and heat diseases must involve many symptoms of Yangming Meridian and Fu organ involvement. However, since he had firmly asserted that warm-heat diseases transmit only to Hand meridians and not Foot meridians, and since the Stomach belongs to the Foot meridians, he could not justify his stance. Thus, in extreme boredom, he proposed the concept of "San Jiao" hoping to compete with the Six Meridian theory. Fearing that his self-invented theory would lack credibility, he further spoke falsely, claiming Liu Hejian previously held this view. He implicitly attributed his proposed Lung and Heart diseases to Upper Jiao, and commonly seen Yangming Stomach diseases to Middle Jiao. Plugging his ears while stealing a bell, his scheme was undoubtedly cunning. However, deceiving oneself and others, he ultimately could not prevent the world and future generations from reading Liu Hejian's books. Then, what was the basis for Liu Hejian's words on San Jiao? Such speculative theories would inevitably collapse. To forge lies and dare to severely slander ancients is simply a method of framing and陷害 (framing/frame-up). Lu Jiuzhi said that Liu Hejian's three articles on warming should be subject to execution; I believe this remark should also be gifted to Old Master Ye. Wu Jutong, being unlearned, actually treated these baseless statements as grand secrets, which is particularly laughable. Nevertheless, those who listen to gossip revere these two masters as treasures, like precious books from the Rabbit Garden, causing the so-called "Ye School" to spread throughout China. This is why warm-heat diseases involving Yangming often result in death upon onset, ten cases lead to ten deaths, and nearly one in a hundred survives. How sorrowful!