士君子立身，为天下之望，虽穷而在下，凡百有作，无一不与天下相维系，故能为天地
立心者，斯能为生人立命，如吾友程子凤雏是已。凤雏受知蒋慎斋先生，称吾楚文章巨子，自
余司铎江夏时，固心识之矣。后稍稍接见，乃知凤雏非特能文章，其胸中浩荡之气，实将空
当世一切之所有，医事其一端已。医亦不一家，而先之以慈幼书者，悯赤子之呼号而莫告也。
今天下医学之弊，非庸则妄，庸者卑陋自窒，守一师说而不能变通，妄者私心穿凿，攻补一
遍而不能察于微渺。其术不同，而杀人则一也。昔宁都魏丈冰叔，谓凤雏之医，神动变化，大
似武侯用兵。凤雏闻之曰∶武侯吾岂敢，吾师邓禹耳。邓禹有言，吾将百万兵，攻城陷阵，未
尝妄杀一人。夫邓禹、武侯，皆能达造化之机者。余观《慈幼》一书，大而胎产痘疹惊痫寒
热，细而耳目喉齿，以及疮疖疥癣，广博精微，无一不具。盖隆中之抱膝，车上之指挥，非
异事也。冰叔之言，岂欺我哉。余又闻凤雏从赵照庵吏部，与延陵二五山人，华山半轮道士，
讲论大丹，驾鹊桥而交水火，固又尝饮天姥之醍醐矣。今此肘后所传，岂更犹夫人之医籍也
哉！凤雏以有为之才，不得有为之地，将以此书鞠育天下之人，其用心良苦，以视一命之士，
惠爱不过一隅，则为功倍多。嗟乎！余曩以木天清冷之官，视学全浙，虽夙夜殚心于端士习
浓风俗，而环视车下创痍之颠蹶，而曾无可挽，不若凤雏心力所及，遂可登斯民于仁寿之域。
余滋愧矣。
黄安张希良撰
士大夫确立自身品格，成为天下的表率，即使身处困顿、地位低下，但凡有所作为，没有一件不与天下苍生紧密相连的。所以，能够替天地确立正心的人，才能为百姓确立命运，我的朋友程凤雏就是这样的人。
程凤雏受到蒋慎斋先生的赏识，被誉为我们楚地（湖北湖南一带）的文章大家。从我担任江夏县教谕（掌管教育行政的官员）的时候起，心里就已经记住了他。后来逐渐与他接触交往，才知道程凤雏不仅擅长写文章，他胸中浩然之气，实际上足以涵盖当世的一切学问，医学只是其中一方面罢了。
医学流派众多，但他首先编写《慈幼书》，是因为怜悯婴儿啼哭呼号却无处诉说。如今天下的医学弊端，不是平庸就是狂妄。平庸的人见识卑陋而自我封闭，死守一家师说而不能变通；狂妄的人出于私心穿凿附会，攻法补法用了一遍却不能察觉细微之处。他们的医术不同，但致人死亡的结果是一样的。
过去宁都的魏冰叔先生曾说，程凤雏行医神妙变化，非常像诸葛亮用兵。程凤雏听到后说：“诸葛亮我哪里敢比，我的老师是邓禹。”邓禹曾说过，我率领百万大军，攻城陷阵，从未妄杀一人。邓禹和诸葛亮，都是能洞察造化玄机的人。
我看《慈幼》这本书，大的方面涉及胎产、痘疹、惊痫、寒热，小的方面涉及耳目喉齿，以及疮疖疥癣，广博精微，无所不备。这就像诸葛亮在隆中抱膝长啸，或在车上指挥若定一样，并非什么奇异之事。魏冰叔的话，难道是在欺骗我吗？
我又听说程凤雏跟随赵照庵吏部，与延陵的二五山人、华山的半轮道士，讲论大丹之道，驾驭鹊桥以交合水火，确实已经饮过天姥山的醍醐甘露了。现在这本肘后方所传的医术，难道还仅仅是普通人的医籍吗！
程凤雏凭借有为之才，却没有施展抱负的地方，打算用这本书养育天下之人，他的用心良苦。比起那些只有一官半职的人，他们的惠爱不过局限于一隅之地，那么程凤雏的功效就要多得多。
唉！我从前以翰林院清冷之官的身份，主持浙江全省的教育，虽然日夜尽心于端正士风、淳化风俗，但环顾车下那些受伤跌倒的百姓，竟然没有任何办法挽救，不如程凤雏心力所能及的，能让百姓登上仁寿的境界。我更加感到惭愧了。
黄安张希良撰写
A gentleman establishes his character, becoming the hope of the world. Even when in poverty and lowly status, whatever he undertakes is invariably connected with the welfare of the world. Therefore, only those who can establish the heart for Heaven and Earth can establish destiny for the people. My friend, Cheng Fengchu, is such a person.
Cheng Fengchu was appreciated by Mr. Jiang Shenzhai and was praised as a literary giant of our Chu region (Hubei and Hunan). Since I served as the Jiaoshu (educational official) of Jiangxia County, I had already kept him in mind. Later, through gradual interaction, I came to know that Fengchu was not only skilled in literature; his vast spirit within truly encompassed all knowledge of the contemporary world, with medicine being just one aspect of it.
Medicine has many schools, but he prioritized writing *Ciyou Shu* (Book of Compassion for Children) because he pitied infants crying out without anyone to hear them. Currently, the malpractice in medicine under heaven is either mediocrity or recklessness. The mediocre are narrow-minded and self-limiting, adhering rigidly to one master's theory without flexibility. The reckless act out of selfishness and forced interpretations, applying tonifying and purging methods indiscriminately without perceiving subtleties. Although their techniques differ, the result—killing people—is the same.
Previously, Mr. Wei Bingshu from Ningtou said that Fengchu's medical practice was divine and changeable, greatly resembling Zhuge Liang's use of troops. Upon hearing this, Fengchu said, "How dare I compare myself to Zhuge Liang? My teacher is Deng Yu." Deng Yu once said, "I led an army of a million men, besieged cities and charged formations, yet never killed a single person unjustly." Both Deng Yu and Zhuge Liang were able to comprehend the mechanisms of creation and transformation.
In my observation of the book *Ciyou*, broadly speaking, it covers prenatal care, childbirth, smallpox/rashes, convulsions/epilepsy, colds, and fevers. Specifically, it details the ears, eyes, throat, teeth, as well as sores, boils, scabies, and tinea. It is extensive, profound, and meticulous, leaving nothing out. This is akin to Zhuge Liang embracing his knees in Longzhong or commanding from a chariot; it is no strange matter. Could Mr. Bingshu's words be deceiving me?
I also heard that Fengchu studied the Great Elixir (Da Dan) with Vice Minister Zhao Zhao'an, along with Erwu Shanren from Yanling and Banlun Daoshi from Mount Hua, discussing the crossing of the Magpie Bridge to harmonize Water and Fire. He had indeed tasted the butter of Tianmu Mountain. Now, this medical transmission passed down in an elbow kit (Zhouhou), how could it still be merely ordinary medical texts!
Fengchu, possessing talent capable of great deeds, lacks the position to exercise them. He intends to nurture the people of the world through this book. His intentions are deeply earnest. Compared to officials of minor rank whose benevolence extends only to a corner, his merit is multiplied many times over. Alas! In the past, serving as a quiet official in the Hanlin Academy and overseeing education in Zhejiang, although I devoted day and night to rectifying scholar conduct and refining customs, looking around at the wounded and fallen beneath the carriages, I found no way to save them. This is inferior to what Fengchu's efforts can achieve, enabling the common people to enter the realm of benevolence and longevity. I feel even more ashamed.
Written by Zhang Xiliang of Huang'an.