【正文】 better, less painful and less risky treatments I can’t help but ask myself, why I didn’t receive oneat the time?Fifteen years have passed since that am happy to report that my hand is this question lingers, and I continue to be troubled by the unequal distribution of scientific knowledge throughout the have learned to edit the human genome and unlock many secrets of how cancer can manipulate neuronal activity literally with the switch of a year brings more advances in biomedical researchexciting, transformative , despite the knowledge we have amassed, we haven’t been so successful in deploying it to where it’s needed to the World Bank, twelve percent of the world’s population lives on less than $2 a kills more than 3 million children hundred million peopleare afflicted by malaria over the world, we constantly see these problems of poverty, illness, and lack of resources impeding the flow of scientific knowledge we take for granted in the modern world is often unavailable in these underdeveloped in far too many places, people are still essentially trying to cure a spider bite with studying at Harvard, I saw how scientific knowledge can help others in simple, yet profound bird flu pandemic in the 2000s looked to my village like a spell cast by folk medicine didn’t even have halfmeasures to ’s more, farmers didn’t know the difference between mon cold and flu。they didn’t understand that the flu was much more lethal than the mon people were also unaware that the virus could transmit across different when I realized that simple hygiene practices like separating different animal species could contain the spread of the disease, and that I could help make this knowledge available to my village, that was my first ―Aha‖ moment as a budding it was more than that: it was also a vital inflection point in my own ethical development, my own selfunderstanding as a member of the global dares us to dream big, to aspire to change the on this Commencement Day, we are probably thinking of grand destinations and big adventures that await for me, I am also thinking of the farmers in my experiencehere reminds me how important it is for researchersto municateour knowledge to those who need by using the sciencewe already have, we could probably bring my village and thousands like it into the world you and I take for granted every that’s an impact every one of us can make!But the question is, will we make the effort or not?More than ever before,our society emphasizes science and an equally important emphasis should be on distributing the knowledge we have to where it’s the world doesn’t mean thateveryone has to find the next big can be as simple as being better municators, and finding more creative ways to pass on the knowledge we have to people like my mom and the farmers in their local society also needs to recognize that the equal distribution of knowledge is a pivotal step of human development, and work to bring this into if we do that, then perhaps a teenager in rural China who is bitten by a spider will not have to burn his hand, but will know to seek a doctor ，有一次，一只毒蜘蛛咬傷了我的右手。我問我媽媽該怎么處理我媽媽并沒有帶我去看醫(yī)生，她而是決定用火療的方法治療我的傷口。她在我的手上包了好幾層棉花，棉花上噴撒了白酒，在我的嘴里放了一雙筷子，然后打火點(diǎn)燃了棉花。熱量逐漸滲透過棉花，開始炙烤我的右手。灼燒的疼痛讓我忍不住想喊叫，可嘴里的筷子卻讓我發(fā)不出聲來。我只能看著我的手被火燒著，一分鐘，兩分鐘，直到媽媽熄滅了火苗。你看，我在中國的農(nóng)村長大，在那個(gè)時(shí)候，我的村莊還是一個(gè)類似前工業(yè)時(shí)代的傳統(tǒng)村落。在我出生的時(shí)候，我的村子里面沒有汽車，沒有電話，沒有電，甚至也沒有自來水。我們自然不能輕易的獲得先進(jìn)的現(xiàn)代醫(yī)療資源。那個(gè)時(shí)候也沒有一個(gè)合適的醫(yī)生可以來幫我處理蜘蛛咬傷的傷口。在座的如果有生物背景的人，你們或許已經(jīng)理解到了我媽媽使用的這個(gè)簡單的治療手段的基本原理：高熱可以讓蛋白質(zhì)變性，而蜘蛛的毒液也是一種蛋白質(zhì)。這樣一種傳統(tǒng)的土方法實(shí)際上有它一定的理論依據(jù)，想來也是挺有意思的。但是，作為哈佛大學(xué)生物化學(xué)的博士，我現(xiàn)在知道在我初中那個(gè)時(shí)候，已經(jīng)有更好的，沒有那么痛苦的，也沒有那么有風(fēng)險(xiǎn)的治療方法了。于是我便忍不住會問自己，為什么我在當(dāng)時(shí)沒有能夠享用到這些更為先進(jìn)的治療方法呢？蜘蛛咬傷的事故已經(jīng)過去大概十五年了。我非常高興的向在座的各位報(bào)告一下，我的手還是完好的。但是，我剛剛提到的這個(gè)問題這些年來一直停在我的腦海中，而我也時(shí)不時(shí)會因?yàn)橄冗M(jìn)科技知識在世界上不同地區(qū)的不平等分布而困擾?，F(xiàn)如今，我們?nèi)祟愐呀?jīng)學(xué)會怎么進(jìn)行人類基因編輯了，也研究清楚了很多個(gè)癌癥發(fā)生發(fā)展的原因。我們甚至可以利用一束光來控制我們大腦內(nèi)神經(jīng)元的活動(dòng)。每年生物醫(yī)學(xué)的研究都會給我們帶來不一樣突破和進(jìn)步——其中有不少令人振奮，也極具革命顛覆性的成果。然而，盡管我們?nèi)祟愐呀?jīng)在科研上有了無數(shù)的建樹，在怎樣把這些最前沿的科學(xué)研究帶到世界最需要該技術(shù)的地區(qū)這件事情上，我們有時(shí)做的差強(qiáng)人意。世界銀行的數(shù)據(jù)顯示，世界上大約有12%的人口每天的生活水平仍然低于2美元。營養(yǎng)不良每年導(dǎo)致三百萬兒童死亡。將近3億人口仍然受到瘧疾的干擾。在世界各地，我們經(jīng)?？吹筋愃频挠韶毟F，疾病和自然匱乏導(dǎo)致的科學(xué)知識傳播的受阻?，F(xiàn)代社會里習(xí)以為常的那些救生常識經(jīng)常在這些欠發(fā)達(dá)或不發(fā)達(dá)地區(qū)未能普及。于是，在世界上仍有很多地區(qū)，人們只能依賴于用火療這一簡單粗暴的方式來治理蜘蛛咬傷事故。在哈佛讀書期間，我有切身體會到先進(jìn)的科技知識能夠既簡單又深遠(yuǎn)的幫助到社會上很多的人。本世紀(jì)初的時(shí)候，禽流感在亞洲多個(gè)國家肆虐。那個(gè)時(shí)候，村莊里的農(nóng)民聽到禽流感就像聽到惡魔施咒一樣，對其特別的恐懼。鄉(xiāng)村的土醫(yī)療方法對這樣一個(gè)疾病也是束手無策。農(nóng)民對于普通感冒和流感的區(qū)別并不是很清楚，他們并不懂得流感比普通感冒可能更加致命。而且，大部分人對于科學(xué)家所發(fā)現(xiàn)的流感病毒能夠跨不同