时间过得真快，1993年秋化一曾携带家属回过上海，我和化一在他家里见过一面，那时他儿子大概只有一岁左右，转眼和化一失联将近30年了。随着自己年纪越来越大，时常会想起少年时期的同学和同伴，由于失联近30年，因此再要寻找少年时期的同学就像大海捞针，难度可想而知。

一次偶然的机会，接触了翻墙软件，马上在FACEBOOK上注册了一个ID,开始寻找我日夜思念的同学化一。但是出乎我的意料，我将化一的中文名字、汉语拼音名字、按英语规则发音的音译名字输入都没任何结果，我感到很奇怪，按理现在是信息化社会，用于社会沟通和交流，人与人之间的交往对于每个人来说在各种软件上或多或少都有自己的ID，我特别是在著名的FACEBOOK社交软件上的搜索没有任何进展。多次搜索没有进展，所有努力都白费了，一种不祥之兆笼罩在我的心头，我不敢想象化一怎么在FACEBOOK上会没有注册ID？

万般无奈之下，我想起了化一的邻居和挚友刘壮一，我想如果能找到刘壮一，那肯定能找到化一！我还是按英语规则发音的音译名字将刘壮一输入FACEBOOK，页面上跳出我熟悉的壮一兄的照片和履历，这就是壮一兄确定无疑！

在我提出加好友请求的第三天，对我来说是个惊喜，壮一兄回复了我，能和壮一兄联系上，我真是欣喜若狂，除了打招呼以外，我急切想知道化一目前的情况。但是万万没想到的是：从壮一兄那里得到的竟然是化一在2021年的3月10日去世的噩耗!真的不敢相信这是事实，实在为他痛心扼腕！

我感到万分的悲痛和伤心！！！天妒英才！！！老天怎么这么无情？

得到化一去世消息以后的日子里，我在痛苦中回忆，思绪一下子回到50多年前少年时期的日子里，往事不时浮现、萦绕在脑海，尽管这些事情都发生在50多年以前，我想把这些回忆写出来，也许心里会好受一些。

我和化一相识在进中学的那一刻，那时班级分配座位，正好有幸我俩分在同桌，从此和化一有了4年的中学同窗日子。这4年的交往相当频繁，正由于接触频繁，因此他给我留下来难以忘却的印象和记忆并由此而影响了我的一生！

首先他是一个相当相当聪明睿智的人！是一个天才！而且在各方面都有相当的才能，是一个全才！从少年时期就体现出非凡的聪明。如果用现在的流行的语言“学霸”来形容他好像低估了他的智商，我认为用“学神”来形容他也许更恰当!因为那个年代他在我的心目中就是神一般的存在！这是我在中学时期最初留下的印象，但若干年以后在他身上所发生的一切也足以证明这一切。

以下从几个方面回忆化一，这些回忆要放在当时的社会环境、社会背景以及少年时期（13岁—17岁这个阶段），这些缺一不可。因为我们是1968年秋天进的中学，那时还是在文革期间，文革从66年开始，我们进中学虽然开始提倡复课闹革命，但是当时还是以闹革命为主，复课也不上什么课，书本以“工基”、“农基”为主，学习也不正规，也没什么作业，整天就是除了玩还是玩。但化一在这段时间内，在家做了好多一般家庭孩子还不会做的有关科技方面的制作，有物理方面的，有化学方面的，也有艺术方面的。

有一天他叫我去他家，说自己做了一辆电动小火车，那时玩具奇缺，电动玩具更缺，在我的脑海里那时好像就没什么电动玩具。而且电动玩具对我来讲更是充满吸引力，因此我带着好奇心去他家看电动小火车的演示。如果放到现在的话，那就不值得一提了，因为现在电动玩具、遥控玩具遍地都是。但把时光倒退50多年，那对于我们来讲真的很好奇，很有吸引力。他用电池驱动电动机，再用蜗杆蜗轮的原理使旋转运动变成直线运动。当时没有现存的蜗杆蜗轮，他就用电线里面的铜丝绕在一条铁丝上，用焊锡焊好以后再用三角形锉刀修成一个螺旋状，一个蜗杆就做好了，蜗杆和电动机链接也很巧妙，用比较细的铜丝绕成一个20MM长的弹簧，一头联电动机轴，一头联蜗杆，再用一块铁皮，做成一个圆形，同样用三角锉刀修成一个蜗轮，这样就做好了驱动装置。火车轮子也是用铁皮加工完成，这样电动机通过弹簧联结蜗杆，蜗杆联结蜗轮，蜗轮链接火车轮子，而铁轨就用2条比较粗的铁丝做成，通电以后很顺利地沿着铁轨顺利运行。除电动机外，全部手工制作，按现在的流行说法是真正的DIY。

后来他又迷上了装半导体收音机，那时国内的半导体行业也刚刚开始复苏，各种元器件十分奇缺，也不知道他是通过什么方式搞到的元器件。最初做的是来复式单波段4管收音机，没现成的电路板，他就自己做。先按原理图设计印刷电路图，再把印刷电路图1:1复制到印刷电路板上。将需要的线条用白漆描绘好，等白漆干了以后浸入三氯化铁溶液里，几十分钟之后，通过化学反应没有被白漆覆盖的铜皮被腐蚀掉，留下的就是制作好的线路板。焊接上元器件，他就自己一步一步调试，一台能接收无线电信号的收音机就做好了。那时也没人教他怎么做，在没有参考书籍和技术资料的条件下，他真的做成了一台收音机。

由于来复式收音机处理信号的能力比较差，接收信号不稳定，有频率漂移现象，大概过了半年时间，他告诉我又装了一台5管2波段外差式收音机（目前收音机都是这种制式），而我的记忆里当时上海的专业工厂也刚刚生产出这一类型的收音机。而业余玩这类收音机的人也绝对凤毛麟角，因为这个类型的收音机和前者在技术上已不能相比，牵涉到的元器件更多，调试技术更复杂。但他确实做成了。

他会展示用废电池外皮（金属锌）放进盐酸里产生氢气的实验给我看（那时我们还没学过化学），他会用自行车链条和钢丝做成一把用火柴作介质的手枪（现在京东商城有卖），还会不用整流器而用其他元器件做成荧光台灯等等……

因此在那个年代，里弄里的小伙伴给了他一个雅号“大博士”，

由此可见他在小伙伴心中的地位和影响力，大博士的雅号实至名归！

所以什么叫天才？这就是天才！

在文艺方面，他也是一个多才多艺的人。他会二胡，会小提琴。我们有一个同学对乐器比较在行，不去上学的日子里，就在他家玩乐器。化一只要一上手，同学教他一点基本知识，他就会融会贯通，没练多少时间就能用二胡拉经典曲子—赛马。但他最拿手的乐器应该是京胡，能拉好多京剧样板戏的曲子。为了学习音乐，他去书店买了红灯记和智取威虎山的音乐总谱，也不知道他是怎么学会认识五线谱的，他身边的朋友在那个年代也没人认识五线谱，更也没人教他。

所以什么叫天才？这就是天才！

他也会写诗歌，进工厂后写了好多政论性的文章。我最初知道诗歌的合辙押韵规则不是在课堂上学到的，而是他告诉我的。

1972年初，中美关系开始好转，为迎接美国总统尼克松访华（1972年2月21日）学校把我们即将毕业的学生全部下放到上海郊区青浦学农基地，我印象最深刻的是他没有一点高干子女的娇骄二气。在早稻插秧时期，全班同学都不敢赤脚下田，怕蚂蟥和蛇咬，但化一是第一个跳进稻田进行插秧的学生。

1972年年底，时任上海市黄浦区区委书记李东鲁特地驱车到青浦学农基地看望化一，事后化一和我说，李东鲁给他一个上大学的名额，但是化一没答应。他对我说要去工厂。因为按当时毕业分配的方案，他可以分配到工厂。后来我了解到，这是上海从72届应届毕业生中大约招生了20-30名学生，主要是培养以后的外交官和政府各委办的储备干部。这个班级目前最出名的就是目前中共中央政治局常委王沪宁。我想当初以化一的智商以及各方面的能力和政治敏感度，如果当初去读书，说不定若干年以后也成了党和国家领导人，这是后话了。

放弃这么好的上学机会，让所有的应届毕业生大跌眼镜。当时化一和我说过他要进工厂工作。确实毕业分配他进了上海的军工企业新新机器厂，当了一名钳工。所谓钳工最初阶段就是不用机械设备而单用简单的锯子、锤子、锉刀等工具加工各种机器零件。我记得他进工厂不久就做成一把锤子带回来给我看，基本功了得。

出于好奇，我曾问过化一这个工厂是生产什么东西的，但他是个有原则的人，一直没告诉我。若干年以后我才知道，这个工厂是生产导弹的，属于保密单位。

化一上班以后，我由于身体的原因在家待分配。这样我们之间的交往渐渐少了，但这段时间从化一那里借来好多世界名著，要知道那个知识禁锢年代这些世界名著很难借到，但化一只要看完一本，就会马上借我阅读。

这些都是50多年前的回忆，我从化一那里学到了好多学校里学不到的知识和技能，化一是我最好的榜样，由此而影响我的一生。

化一在去合肥中国科技大学读书以后，我们之间一直没有联系。1983年夏天，这是他去美国读书第一次回国探亲，他叫亲娘来我家约我去他家聊聊，这次会面我了解了化一在中国读书和去美国留学的大致情况。

1993年秋天，在他家最后一次见面，聊到了他从事的职业和家庭的情况，临分别时他说了一句话，“这次见面以后估计20年不会再回上海了”那时我还很天真的想：20年？时间还很长呢！没想到这一别就是30年！

化一是我这辈子最尊敬和崇拜的人，没有之一！

愿天堂没有痛苦！化一安息吧！

瑾以此悼念化一！

                     李卫洲 写于2022年6月

远处望山，特别能感受那山的雄伟和气派。做为化一的校友和秀玲的好朋友，在化一走后，总是有那远处望山的感觉。感叹化一学业的杰出和家庭的完满。

化一是中国科学技术大学(简称科大)774的毕业生。77代表是1977 年入校的。4代表是在近代物理系学习。

1977 年，在停止了十年之后，国内第一次举行了普通高等学校招生全国统一考试(简称高考)。是有史以来竞争最激烈的一年。那年570万人参加高考。27万人被录取。化一是之一。

科大做为当时国内前三所大学其中的一所，77年只录取了738名学生。化一是之一。

在科大所有科系中，近代物理系的录取分数是最高的。当时每年只录取二三十名学生。化一是之一。

由李政道先生倡导的”中美联合培养物理类研究生计划”(CUSPEA) 当时每年从全国挑选100 左右学生，赴美留学，攻读物理和相关领域的博士学位。化一又是之一。

好朋友秀玲，漂亮、伶俐、善良，格外的能干，且非常的肯干。化一与她组成了家庭，育有两个孩子，一男一女。这次，化一是全世界最幸福的人之一。

化一的一生，家庭幸福、学业和事业有成。就像座雄伟壮观的大山。远远望去，那大山郁郁葱葱、翠绿常青。


科大7911，Bianjia Li

Huayi is someone I will  never forget. I know he was a brilliant thinker and helped make Rennaisance what it is today. I will always remember his kind demeanor, his beautiful smile and contagious laugh. I was lucky enough to serve him breakfast each morning at Renaissance.  He never had to say a word, I knew what he wanted and tried very hard not to break that yolk every day!  If I did, I would beg his forgiveness and offer to make him another egg. He would flash thatsmile at me and of course refuse.   Then I would say, “Huayi, you are the best!”  Huayi was the only one that I actually delivered breakfast to, leaving the kitchen to present it on his dining table.
Huayi was my morning joy!  Taken too soon. RIP my sweet friend, till we meet again~

惊悉张化一离世，非常遗憾和难过。虽然知道他病重，但是想到他在秀玲的精心照顾下，同疾病頑强战斗了这么多年，这次也许可以挺过来。可惜世间还是没有办法能留住他，过早地让他离开了可爱的妻子和儿女。
大约20多年前我们住在长岛，在伟康和小明的引见下有缘和秀玲和化一相识。之后我们在长岛的几年孩子们经常在一起玩，女士们更是经常一起念念妈妈经。两个家庭结下了情分。聚会时化一给我们的印象是个很独特，睿智 和低调的人。对社会和生活很有独特的见解。每回相聚大家享用美食，相谈甚欢。我们还一起去过他们在New Jersey 的度假屋滑雪，度过了快乐的时光。回想起来那时候大家都年轻健康，真好！
我们离开长岛后两家女士一直经常自然而然地联系着，使两家的情分陪伴着我们一起走过明媚，晴朗和风风雨雨的时光。我们很敬佩化一捐赠大学医学研究经费和其他慈善的心行。我们也知道这些年秀玲为了治好化一的病，调解他的身体，让他生活得有质量，苦读中医，烹饪高质量健康食品，精心照顾，这让我们非常佩服和感动。化一有这么一位贤妻真是三生有幸！
家有儿女个个成才，今后他们的生活道路上父爱会永远伴随。
化一安息吧，天堂没有疾病和痛苦！
衷心希望秀玲，聆聆，奂奂节哀，保重。把以后的日子过好，是对化一最好的纪念。让化一在天之灵保佑你们，一切平安，健康，快乐，幸福！
                                     顾葳，吴铭，天石（Allen)

I first met Huayi when interviewing for position at Rentec back in 1992. I remember being impressed by his wit and rather dry humor, which I have appreciated ever since. It was of course only later - once we became coworkers - that I was struck by quality of his work.
Huayi was always thinking outside the envelope and taking on (and solving, of course) obscure and seemingly impossible to solve problems which always proved to be of significant importance and impact. On the personal side, I shall always remember his laugh and everpresent cup of tea - often served together in his office.

I met Huayi more than 18 years ago when I first joined the company. Huayi was one of the most senior and respected employees. Over the years I got to know him a lot better. I enjoyed listening to those stories about Renaissance's early days - they gave me perspective where this company came from and where it goes. We often had lunch together and lunch table discussions were wide-ranging - from trading profits to world events - we literally talked about everything. We agreed on many things. Even when we disagreed, Huayi was always friendly and diffused any tension with his laughter. Although Huayi was quite a bit older than me, I found him to be someone I could really relate to. I missed times spent with him outside of work whether it was attending his house party in the Fall, helping him get his boat back in the Spring or dinner conversations with Huayi and Siuling on annual Renaissance trips. Rest in peace, Huayi, you may be gone but will never be forgotten !

When I joined the company Huayi and Siuling kindly invited Vincent Wong's family and my family for dinner. We spent a wonderful night, with Siuling's mother show and explain to us many of her Chinese paintings. It seems not a long ago and we were still young men then.
Even though we differ in age by a round of Chinese zodiac, our kids are similar in the age and often play together. It's amazing to observe the four boys/girls playing together intensively and show vast different personalities. Now they are all grownups and hope they can remain friends for life.
Huayi has always been strong and athletic and is very good at tennis and skiing. It's sad to watch him becoming increasingly emaciated with visible speed after the horrible strike of the disease.
Huayi is always the benevolent elder brother, always gracious, calm and smiling, even when debilitated by the disease. When he decided to retire fifteen months ago we expected a long and happy life for him ahead in the warm Naples sea breeze. It's so sad that he passes away so fast! 
You will forever be missed Huayi!

Rest in peace. 

Huayi was my colleague at Renaissance. His office was right next to mine. I have known Huayi close to 20 years and in all that time I would always stop by to either discuss current events or to ask his view on various matters. Our brief discussions would many a time turn into a lengthy conversation. We both were immigrants in the United States and therefore shared a lot of views on many topics. Huayi would always provide his own take on the matter at hand and we would always part laughing. In fact, it is that laughter that I remember now as it was yesterday. I  am not even going into detail to all the contributions he has made to the company and to our group. When Huayi retired I did not say goodbye, but reminded him that we will once again have lunch with him in due time. The lunch table at Renaissance is an institution and Huayi never shied away from participating in the discussion of the day. It grieves me that I did not have the chance to once again break bread with Huayi. I miss you my friend and know that you will never be forgotten.

I get to know Huayi at Renaissance lunch table. During the lunch conversions for more than ten years I shared with Huayi at Renaissance, not only we become friends, he also becomes such a respectable figure to me. I share most of his views and opinions. And for many thoughts I have now, it is only through his words that they become clear. He was also such an easygoing person, always smiling and composed, even when arguing. I will miss his wisdom and smiling for the rest of my life.

病魔夺走了化一的生命。但是，您永远活在我们的心中。
想想刚移民加拿大，每年我们都会去您家里新泽西洲和长岛，您和秀玲带着我们到处旅游，自由女神像、沙滩及各种景点。一到节日，我们就去逛商场，以及吃不同的美食，每次点餐就数您点的东西最好吃。给我影响挺深的是，您来加拿大蒙特利尔时，我们一起去冰钓，外面冰天雪地，白雪皑皑，我们几个在小屋里等着鱼儿上钩。虽然，我们没有钓到一条鱼，然而，我们都很享受整个过程。
回忆是美好的，记忆是深刻的。太多太多的事情在脑中浮现。此时此刻我词穷了。但是，有一点，我是非常清楚。感恩您这么多年的慷慨、无私的的帮助。 
我们永远怀念您！
弟媳

Huayi and I first met in 1996.  At the time, I was attending Stony Brook University.  My girlfriend, later wife, had gotten to know the wife of one of Huayi's co-workers at Renaissance.  We had been invited to their house for dinner one night.  As a student, it was inspiring to see the home of a successful Chinese professional.  Huayi and Siuling were gracious hosts and generous with their time.  


When I became colleagues with Huayi, I had the opportunity to get to know him better at various social gatherings.  I came to learn that he was a devoted husband and father.  That he was invariably friendly and unfailingly kind to all.  He had a quiet strength about him while dealing with adversity.  There were many lessons that I've learned from him.  He was with us for all too short a span, but I am forever grateful for the time I was able to know him.  You shall be missed, Huayi.  Rest in Peace.  

On an October morning in 2011, two months after my arrival at Stony Brook, I got a call from the Dean of the medical school, Dr. Kaushansky, requesting me to meet him in my newly renovated research laboratory located in the Health Sciences Center Tower of the medical center. There I met Huayi for the first time who was accompanying the Dean. I was asked to describe to Huayi the design of the new lab space, how equipment in the lab works, and my plan for recruiting faculty physicians and investigators to Stony Brook. Later I came to realize that Huayi was considering a major philanthropic donation to Stony Brook University in a named Endowed Chair in Immunology, as part of a larger campaign spearheaded by Jim Simons of the Renaissance Technology (and as an appreciation of the generosity of the Renaissance family in supporting Stony Brook, the medical school was renamed Renaissance School of Medicine at Stony Brook University). Huayi was one of the earliest and major donors to the campaign, which fueled an ambitious and rapid growth of biomedical research in the medical school, partly evidenced by the recruitment of numerous expert investigators to the university. Philanthropy in the form of an endowed chair is one of the highest honors that a donor can bestow upon a faculty member. Huayi clearly understood the prestige his donation brings to the university and to the named individual.

Subsequently, Linda and I were introduced to Huayi and Siuling by a mutual friend, Mindy. We got to know them in a social setting. Huayi always strikes me as a man of deep faith with a formidable knowledge base. He likes to read with a special interest in current affairs. Despite being chronically afflicted by a rare autoimmune disorder, Huayi remained deeply committed to his family and career. On a trip to southern Florida three years ago, Linda and I visited Huayi and Siuling in their oceanfront apartment in Naples (see photo) as they explored the various options upon Huayi’s impending plan for retirement. He was looking forward to the beginning of the next chapter in his life and was the happiest that I have seen him. The relaxed atmosphere and mild climate in Florida were something that he found quite enjoyable.

Perhaps due to his own health condition, Huayi continued to be a strong supporter of medical research. I was extremely appreciative when he approached me a few years ago and expressed his and Siuling’s desire to donate a second Endowed Chair, this time in Rheumatology. We recently recruited from the Cleveland Clinic a new Chief of the Division of Rheumatology in our department, Dr. Yao, who is a renowned Rheumatologist best known for his pioneering work on several autoinflammatory disorders. This donation thus arrived in a most timely manner as Dr. Yao prepared to put together a first-class research and clinical program in Rheumatology at Stony Brook. Apart from the two Endowed Chair positions, Huayi and Siuling’s contribution also helped the recruitment of two young immunologists to the Department of Microbiology and Immunology (formerly known as Department of Microbiology and Molecular Genetics and renamed in part because of Huayi and Siuling’s support). These combined efforts provided the foundation for the development of a strong immunological and rheumatological research program at Stony Brook.

Huayi’s health has not been well in the last year. It has also been a difficult year for Siuling who is totally devoted to caring for him. Yet they remained incredibly strong and hopeful, while at the same time Huayi embraced his fate with grace and courage. As we mourn his loss, Huayi’s legacy will forever live in our memory. We are eternally grateful to his contribution to mankind.

Vincent W. Yang, MD, PhD
Simons Chair of Medicine
Professor of Medicine, Biomedical Informatics, and Physiology & Biophysics
Renaissance School of Medicine at Stony Brook University

March 2021

I have known Huayi for over twenty years as a colleague and a friend. When I first joined the company, he had already been there for more than a decade. He became like a big brother to me, providing me with valuable advice over the years. It's amazing that we share a lot of the same interests. Both of us love classical music and both of us love sport cars. We even once drove cars with the same model and color. The difference was that he never drove over the speed of 70mph. I guess that's because being a life time researcher, Huayi loved to take risks but he also knew how important it is to control risks.
 
What I'll never forget about Huayi is his kindness and generosity. Whenever we spoke, he was always smiling. He'd ask me how things were going and if I needed any help. As a Buddhist, Huayi believed life was simple and life was good. He lived a happy life. On March 5, my wife and I visited him at his home and we witnessed how courageous and gracious Huayi was when he was in his final days. We were fortunate to have the opportunity to sit together and chat with him. Before we left, we naturally shook hands like before without realizing that we broke the covid-19 protocol. Afterwards, Huayi told me seriously that I should wash my hands as soon as I get back to home. That's how caring Huayi was: he always cared for others even when he was seriously ill himself.

Huayi believed that life should be not only about yourself, but about humanity and the society as a whole. Throughout his lifetime, he donated a considerable amount of his fortune to education and medical fields for a better future of the society.

Huayi, we'll always remember you and will always dream of your smiling face! Rest In Peace.

张福伟，曹育松 （2021年3月13日，写于休斯顿）

By Fuwei Zhang & Yusong Cao (March 13th, 2021， Houston)

我们和化一的夫人秀玲是华南理工大学造船系的77级同班同学，福伟和秀玲还是同宿舍的闺蜜。最早知道化一是通过秀玲在广州的父母并从照片中看到了他和秀玲一起留下的幸福时光。与他的见面直接交流是我们也到了美国之后。三十多年了，我们几乎在他们家的每处住所都做过客。由于持相同‘政见’，所以有很多共同语言，也从他对美国的宪法，制度，以及各个时期时事政治的深入思考和分析中得益匪浅。

We both were classmates of Huayi’s wife Siuling in South China University of Technology’s Department of Naval Architecture and Marine Engineering. Siuling and Fuwei were also roommates and best friends. The first time we heard about Huayi was from Siuling’s parents. Through the photos they showed to us， we saw Huayi and Siuling’s happy times together. Since we came to US, we met Huayi in person and knew him more through each time we visited them. In the past more than 30 years, we’ve been to almost every home of theirs in different places. Through the communications, we found out that we shared very similar understanding and appreciation of the principles of life, liberty and pursuit of happiness. We also found out that he was a deep thinker with broad knowledge. He cared seriously about US Constitution, the political system, economic policy and major events of various times. It’s very beneficial to listen to his insightful analysis.

2005年我们在新奥尔良受到飓风后的决堤水灾后，化一和秀玲在第一时间不仅送来问候，还寄来雪中送炭的无息无期限的支票帮助我们重建家园，令我们至今难忘。在得知化一帮助了许多科大的贫困学生以及在几所大学捐赠资金支持医学研究的消息时，我们并不奇怪。因为这就是他的人品，爱心和奉献公益精神的必然所在，而且他做得非常低调。

A lasting memory of him is his generosity and providing the help without being asked. In 2005, Hurricane Katrina hit New Orleans and caused the levee breach and city-wide flooding. Huayi and Siuling immediately contacted us to make sure that we were safe. They also mailed checks to us to provide the fund without interest and time limit for our home repair project. We were not surprised when we later learned that he also had helped needed students in China and set-up several endowed chair professorships in leading US Universities to support medical research in order to help more people with diseases with cure. He had a big heart to help others. He was also very humble and always kept low profile while making big contributions.

化一在退休前就开始为退休地点做筹划。他先租下Naples的海边高层单元实际体验，也和秀玲一起来我们所在的休斯顿实地考察。记得我们一起去看一个在建的高层顶楼单元时都被24英尺高屋顶和180度视野的玻璃墙所震撼。化一在环顾了周围后说：‘这个单元现在是很不错，可是如果旁边的空地上再建一栋更高的楼，就会挡住部分视线而优势不再了’。后来果然那里又起了一栋更高的楼，使化一的预见成了现实。我们后来也到他们租的Naples住处体验了一周，感觉到那里更适合他的退休生活，并为他的最后选择而高兴。没想到的是他向往的退休生活才开始不久就中断了。

Before his retirement, he started to look for places to be his final settlement to enjoy the retirement life. The two options were Naples, FL and Houston, TX. He first rented an ocean front high-rise unit in Naples, then he companioned Siuling to Houston. We were with them for house hunting and we all impressed with a new high-rise building’s penthouse unit for its 24’ high ceilings and glass walls with 180 deg. Park-city views. Huayi looked around and noticed an unused lot nearby. He then told us that if a taller building were built in that lot, then the view would be blocked and the current unit’s benefit would be temporary. Now a new high-rise building has been built and taller than the one we saw and proved that Huayi was right. We later visited them in their rented unit in Naples for a week, and truly understood and believed that it’s the best place for his retirement. We were very happy for Huayi and Siuling finally settled down in Naples in a home to call their own. But unfortunately, their dream retirement life was cut short.

回想起和化一的许多交谈，觉得他始终是头脑最清醒的那一个人。他会认真地听完每个人的话，然后点出议题的关键。每次的交谈都非常愉快，然后就期待着下一次。可惜这个下一次没有了，但化一的音容笑貌会成为我们的永久纪念。

Recollecting our conversations with Huayi through the years, one conclusion is that he was always the one with the clearest mind. He was attending, patient, and listening to all the people points, then express his view like hitting the nail on the head. We enjoyed every minutes of the conversations with him. Everyone ended with a good lough, expecting another one at next time. It’s so sad that there is no more next time now. We will forever miss him, miss his wisdom and miss his lough.

愿化一在天堂安息。愿秀玲和孩子们节哀。

May Huayi rest peacefully in heaven.
May Siuling, Ling Ling, and Huan Huan draw strength and comfort from Huayi’s memories.

It’s such a shock when I heard the sad news that Huayi passed away that I could barely believe it.

Last time I saw him was when he was about to retire from the company where we worked. His wife Siuling and he told us about their retirement life that they were envisioning, and various plans they had in Florida.  It was easy to spot their genuine excitement and happiness and we could only express our well-wishes from the bottom of our hearts. He invited us to visit them at their Florida home when we had a chance, and we really looked forward to it. Nobody expected it would be the last time we ever saw him.

Huayi was my colleague. When I first joined the company, there was this group of employees who came from the same cultural background that had lunch together regularly. Huayi was part of it and I was introduced to him this way. Soon afterwards I met his family during an employee family trip to a Carribean island organized by the company. My initial impression was that Huayi was a poised father figure.

We got to know each other better, after having lunch sitting at the same table and taking walks after lunch together day in and day out, attending company events and getting together at other occasions. Huayi joined the company early on, when it had only a few employees. He would tell us about the history and what the company went through over the years when we asked him about it. Being more experienced in many things, he gave me valuable suggestions and recommendations on various matters.

Huayi was a good-natured gentleman. We used to talk about all kinds of topics, and inevitably diversified views popped up. But he never let differences of opinion get in the way of friendship, and that is a rare and true virtue when I now reflect on it. Huayi was a big supporter of our community and society at large, and gave to educational and other institutions. But he was also someone who was extremely low-key. I remember that before his retirement I wanted to follow our tradition and organize a send-off lunch for him with some of his close colleagues at the company attending. He refused because he did not want to draw attention to it. We ended up buying a gift card and a retirement card for everyone to sign. When I gave them to him, he was surprised and thanked us repeatedly, as if we were doing something extraordinary for him.

Huayi was also my friend. Now when I remember our time together, many fond memories emerge. I remember the time when he took us on a boat ride not long after he bought his new house and also acquired the boat from the previous owner. My recollection of the sea, the sunny day, the blue sky and the gust of wind that afternoon still feel so fresh. I remember that time when my toddler son who didn’t know how to swim jumped into his swimming pool out of overly excitement, I had to jump in with my clothes on to pull him out, and later Huayi gave me some of his clothes to change out of my wet ones. I remember the occasion when he mentioned that his daughter who was still in junior high school at the time travelled to Japan all by herself to attend a summer camp, and could hardly conceal his pride in her. And I remember the affectionate way he talked about his son’s street-smartness and easy-going personality.

Twenty-seven hundred years ago, a Chinese poet wrote: “Those virtuous gentlemen, will be truly and forever remembered”. I believe that’s how people who got to know Huayi feel too.

Rest in peace, Huayi.

I first met Huayi at the beginning of 1990. I was just graduated and started working for Kepler, and Huayi also just joined Renaissance slightly earlier. We worked at a small 2-story house in Long Island; Kepler was on second floor and Renaissance was on the first floor. Huayi and I quickly became good friends and he was like a big brother to me, teaching me valuable life lessons. He was always calm, but with a quiet confidence, assertive, decisive, and persistent.

At the time, we were both very interested in a nice little turbo-charged sports car, Mitsubishi Eclipse, which was also sold as Eagle Talon: same car different brand, with Eagle Talon a little cheaper than Mitsubishi Eclipse. He went to a car dealer to see an Eagle Talon one day and offered a very low price for the car. The dealer refused. And Huayi smiled and said, “OK, see you next week!”, and left. Next week, the same thing happened. Finally, after a few weeks, the dealer caved in, and Huayi got the car at the very good price he wanted.

That’s what Huayi was: calm, assertive and persistent.

猝闻化一去世的消息，一开始怎么也不敢相信。

上一次见到他的时候还是前年底他即将退休前，听他和太太秀玲给大家讲述他们即将开始的退休生活，在佛罗里达渐次展开的各项计划，兴致勃勃，言笑晏晏，让人从心底为他高兴和祝福。他邀请大家有空去佛罗里达盘桓，大家也都由衷充满了对再见的期待。不成想轰然间已天人永隔。

化一是我同事。我刚加入公司时，周围已有不少华人同事，化一跟我分属不同部门，但大家工作午餐都在一起吃，一来二去算是认识了。我一去就赶上了公司组织员工家庭去加勒比海岛国旅游，就此认识了秀玲，也见到了那时大概还未满十岁的他的女儿和儿子，接触中感觉化一是个稳重耐心的父亲，一家子其乐融融。

一起吃工作午餐，饭后一起散步闲聊，加上参加公司组织的各项活动和交往，各种机会使大家的互相了解不断加深。化一是元老，三十年前就加入了公司。有时我们好奇问起来，他就给我们讲些公司的历史和掌故，让我们了解一些有趣的轶事。除此之外很多工作和生活中的实际问题也蒙他指点，受益良多。

化一是品性谦和的君子，大家谈天说地，有时涉及到有分歧的话题，各抒己见，他从来都是不为已甚，不以议论之异同而害私谊，值得学习。化一热心公益，为社区和社会做了不少事情，但他本人是个谦退低调的人。他退休前我张罗想给他搞华人同事例行的欢送聚餐，但他不想张扬所以就拒绝了，最后是大家联合赠送他退休致贺卡和礼品卡了事。

化一也是我朋友。回想与化一相处的日子，有很多温馨的记忆。还记得他搬新家后，带大家坐他顺便买下的原屋主的船在海上兜风时丽日蓝天、海风劲吹的情景。还记得才几岁的犬子不知轻重跳进他家泳池里水没头顶，我情急之下不及脱衣就跳下去把他捞上来，事后化一给我找来自己衣服换上的事情。还记得他提起当时还在读初中的女儿独自远赴日本参加夏令营时掩饰不住的骄傲神情，和对儿子练达灵活的欣赏。

《诗经·小雅·鼓钟》篇有言，“淑人君子，怀允不忘”，我想这是很多与化一交往过的人的共同感受。

化一，一路走好。

                                                                                                黄晓东  2021.03.13 写于长岛

在春回大地的1978年3月的合肥，9号是个特殊的日子 - 科大77级报到的最后一天，从那一天起，来自全国各地的95位莘莘学子开始了科大774的学习生涯。从此大家的人生道路，由于这段共同的校园生涯，而产生了交集。整整43年后的2021年3月9号，有10个往日的同学 （汪洋，刘刚，李明祥，邓要兵，林建成，方渡飞，许非，何堤，吴士明 和 刘欢）相聚在Zoom 视屏会议上。 因为24小时之前，他们的科大老同学， 张化一，经过与疾病数年抗争，已经进入弥留状态。大家聚在一起为化一祈祷，希望奇迹出现。同时回忆一下40年前化一在科大校园上留下的点点滴滴。

当时化一给同学们的印象是有思想，有见地， 有阅历，有哲理。话不多。但对于熟识的同学或朋友，尤其是在探讨人生，憧憬未来，文学经典等方面，他却能够侃侃而谈，表达自己的观点和见地。他心态沉稳，遇事淡定。有一个例子可以说明。林建成方渡飞还记得1979年夏的一天， 下午4点江苏溧阳发生了地震， 合肥有震感。所以大家有点紧张。晚上不知谁喊了一声地震了， 大家一起从宿舍往外跑。刘亚东还把脚都割破了。但是大家回去一看， 化一还在床上睡着。

舞台剧 -《半夜鸡叫》

化一的自学能力很强， 很多东西自学的。比如英语。通过入校摸底考试，他是当时系里允许免修英语的两位学生之一。他用他的英语优势自编自导了一个英语舞台剧 - 半夜鸡叫。（演员表： 许非-高玉宝，汪洋-长工1，徐纪华-长工2，肖持进-周扒皮，郑家林-地主婆）这个节目代表4系参加了全校文艺表演。方渡飞，作为专业编剧二代，对化一改编的英语剧本高度赞扬。（不知道上述演员能否披挂上阵，再演一场， 作为对化一对那段时光的缅怀）除了编导舞台剧，化一还组团了一个男生四重唱。经常表演“河里的青蛙”等曲目。（演员表：张化一， 刘刚， 苏环宇， 康向东，手风琴伴奏 何堤）

情感专家, 爱情顾问

774女同学们对他的印象是整天文质彬彬笑眯眯地迈着外八字的步伐。跟女生并不多话。可是从科大开始，他逐渐发展出情感问题的咨询能力。虽然那年科大学生总体年轻，化一进校的时候， 在班上属于年长的。由于他的思想和阅历，处于青葱年代的别人当遇到感情困扰时（主要指爱情）常常会去找化一释疑。每每遇到这种情况， 化一总会认真帮忙分析，解决。发挥一个老大哥的作用。由于当时科大男女比例失调，为了更好的给大家提供一些机会， 化一通过他姐姐的朋友，（当时在毗邻的安徽大学外语系上学），亲自组织了好几场安大外语系和774的联谊舞会并后续活动。通过这些活动，成功的促成了两校同学的友谊，至少有一对爱人成了终身伴侣 （吴伟康-万小明）。作为这方面的专家顾问， 化一很有自信。有时不用见人也行。刘刚出国前在云南谈了个女朋友，就是下不了决心。专门找化一分析分析。基于什么呢？就基于刘刚的口述，对方的回信和照片。经过分析，结论是绝对错不了，赶紧下决心追。四十年过去了，他们夫妻琴瑟和谐，恩爱如初。后来出国几年以后，刘欢跟他一起回去他读研的学校度周末，还见到他情感咨询，热心帮助他的同学。

学习

化一进校之前，自学了很多东西。起点比较高。但他并不是只顾课本对分数看的很重的那种学生。邓要兵至今记得化一在一次讲演中说到爱因斯坦的小提琴比他的物理好。李明祥记得有一次微积分开始复习时，他请化一给他解答一道题。化一给他仔细教会。考试时， 果然有这么个题，李明祥幸运答对。可后来发现化一自己反而失误。遇到这种情况， 化一一笑置之，只要他帮助的人答对了他就高兴。在大学上了三年以后，化一提前考取了留学的两个名额之一。成了同学们膜拜的榜样。


心系科大，爱心助学

虽然化一生于上海的一个高干家庭，但是他在平日生活中完全没有表现任何的优越感。相反，他特别想帮助贫困学生。化一是当时科大海外校友基金会发起及最大捐资人之一， 也是1997年11月发起的科大“爱心行动”捐款最多的校友。据科大海外校友基金会（USTCAF）曾经的会长张上游（771）说早在89年张化一就想给科大贫困生捐款了，那时还没有一个合适的渠道。92年他知道有USTCAF这个组织了，就打电话给张上游，问能否为科大学弟学妹做这件事。95年刘冬子负责AF工作，化一也给刘冬子打电话表达捐款意愿，并如愿地数次为科大母校慷慨捐赠。

那个年代

八十年代是一个特殊的年代。是个思想大解放大变化的年代。青年大多充满了对未来的憧憬， 对远方，对外部世界，的向往。

刘刚出国前最后一晚到化一上海的家做客，化一推荐给他一本他一个朋友写的手抄本小说。书名 《城市之光》。 说的是几个城市青年开车到某个乡下，车坏了。他们被困到乡下呆了一天。通过他们的一些行为， 比如穿泳衣池塘里游泳，在保守封闭的乡下引起了极大的文化冲击！在村里年轻人心里播下了骚动的种子。城市青年见识了乡下的保守思想的落后。书的结尾，车修好了， 城市青年的车沿着公路渐渐开远了，消失在车轮扬起的尘雾中。这条路通向县城， 县城又有更大的路通向省城，省城还有更大更宽的路通向首都，首都又有无数公路，铁路，和飞机通向世界更大更多的城市..... 小说结尾的这段话使他们印象深刻，正好反映了他们即将出国，走向世界更多更大的城市时的心情。


尾声

大家你一言我一语，将近两个小时很快就过去了。带着对化一的祝福和祈祷， 大家各自休息。但他们当时并不知道，等待他们的将是第二天一早的噩耗。2021年3月10号，伴随着第一缕晨曦，在化一第一次踏入合肥中科大的大门的43年零一天以后，他的心脏永远停止了跳动。R. I. P.