President [Leo Rafael] Reif, 赖夫校长，
Chancellor [Melissa] Nobles, 诺布尔斯教务长，
Faculty, staff, parents, friends, 各位教师、员工、家长和朋友，
And most importantly, the graduands of MIT's Class of 2022. 最重要的是麻省理工学院2022届毕业生们。
I could not be more honoured, or more delighted, to be here in Killian Court with all of you today. It is a bittersweet day because this is the last commencement of a wonderful President and a good friend, Rafael Reif. I want to take a moment to pay tribute to his academic, institutional, and thought leadership these past ten years. The MIT model, which President Reif has done so much to develop, is influencing higher education and research around the world. 今天能在基利安庭院与你们相聚，我无比荣幸，也无比高兴。今天又有些苦乐交织，因为这是出色的校长、我的好友拉斐尔·赖夫主持的最后一届毕业典礼。我想花一点时间，向他过去十年在学术、学校建设和思想方面的领导致敬。赖夫校长大力发展的麻省理工模式，正在影响世界各地的高等教育和研究。
A testament to this is the number of former MIT professors and staff now in senior positions at other top universities. To take just a few examples: 许多曾在麻省理工任教或工作的人员，如今在其他顶尖大学担任高级职务，就是明证。仅举几个例子：
Former Associate Provost and Vice-President for Research Alice Gast is now President of Imperial College, London, having previously served in that role at Lehigh University. 前副教务长兼研究副校长爱丽丝·加斯特，在担任理海大学校长后，如今出任伦敦帝国理工学院校长。
Subra Suresh, former Dean of the School of Engineering, became President of Carnegie-Mellon University after a stint in the Obama Administration, and now leads the prestigious Nanyang Technological University in Singapore. 前工程学院院长苏布拉·苏雷什在奥巴马政府任职后，成为卡内基梅隆大学校长，如今又领导新加坡著名的南洋理工大学。
All of you will remember Provost Martin (Marty) Schmidt, who was recently appointed president of Rensselaer Polytechnic Institute. 你们都记得教务长马丁·“马蒂”·施密特，他最近获任伦斯勒理工学院校长。
And I have to mention someone I remember as a young professor of environmental studies in no other than DUSP, the Department of Urban Studies and Planning: former MIT Chancellor and current Harvard President Lawrence (Larry) Bacow. President Reif Symbolizes what is so respected about MIT around the world. Human centred science and innovation for the challenges of today, but also looking ahead for the challenges of tomorrow and the decades to come. Rafael, we wish you well in your new endeavours. 我还必须提到一位我记得当年在城市研究与规划系担任年轻环境研究教授的人：麻省理工前教务长、现任哈佛大学校长劳伦斯·“拉里”·巴科。赖夫校长体现了麻省理工受到世界尊重的原因：以人为本的科学与创新，既解决今天的挑战，也着眼于明天和未来几十年的挑战。拉斐尔，祝你在新的事业中一切顺利。
As I stand here, memories are flooding back. 此刻站在这里，往事纷纷涌上心头。
On my first day of graduate school as an MCP student in DUSP in September 1976, I must give a shout out to DUSP (Hello DUSP). I remember going to the international student's office, worried about how I was going to cover my tuition and board for the second semester and thereafter, my father had paid for my first semester. I was met with wide smiles and open arms by the wonderful staff in that office. 1976年9月，我作为城市研究与规划系的城市规划硕士生入学。请允许我先向这个系致意——你们好！研究生开学第一天，我走进国际学生办公室，担心第二学期以及此后的学费和食宿费如何支付；第一学期的费用是父亲替我付的。办公室的优秀员工笑容满面、张开双臂迎接我。
They told me not to worry, and that once they get an international student in, their job is to make sure that student graduates. They would help me find the means, an RA or TA position or a loan. They were proud, they said that international students had the best loans repayment record among all the students and so I shouldn’t worry. I should just concentrate on my studies. 他们告诉我不用担心：一旦学校录取了国际学生，他们的职责就是帮助这名学生毕业。他们会帮我找到办法，比如研究助理或教学助理职位，或者贷款。他们自豪地说，国际学生的贷款偿还记录在所有学生中最好，所以我不必忧虑，只需专心学习。
They had my back! You can imagine what a warm and fuzzy feeling that gave me, especially since I could reliably say that not every Cambridge based institution was as welcoming at that time. So, began my love for this great institution on whose grounds we stand today. 他们是我的后盾！可以想象，那让我感到多么温暖和安心，尤其因为我敢肯定，当时并非所有位于剑桥的机构都如此欢迎国际学生。我对我们今天所站立的这所伟大学府的热爱，就从那时开始。
In 1981, I again stood where you are today, having finished my PhD in regional economics and development under the supervision of a cracker jack dissertation committee, led by Professors Alan Strout, Karen Polenske and Lloyd Rodwin, that was as caring as it was demanding. 1981年，我完成了区域经济与发展领域的博士学位，再次站在你们今天所在的地方。指导我论文的是一支既严格又关怀备至的出色委员会，由艾伦·斯特劳特、凯伦·波伦斯基和劳埃德·罗德温三位教授领衔。
I was heavily pregnant, (virtually 9 months) with my first child when I defended my dissertation. Writing the dissertation itself had been rocky with lots of tearful weekends as I struggled with my data and SPSS. (Does anyone remember that?) I clearly remember Alan telling me after I submitted my first chapter that it was below my usual standard and I should tear it up and start again. I spent all weekend in tears before picking myself up and starting over. 博士论文答辩时，我怀着第一个孩子，已经几乎九个月。写论文本身并不顺利：我为数据和统计软件的问题苦苦挣扎，许多个周末都在泪水中度过。我清楚记得，交上第一章后，艾伦告诉我写得低于平时水平，应该撕掉重写。我哭了整个周末，然后振作起来重新开始。
In fact, I am convinced they only let me get away with the defence because of that baby. I let them know I was due any moment and I could have the baby any day, maybe right there during the defence. They looked terrified and you can imagine how quickly it all went so they could get me out of there. By the way, this is a good trick to try, but unfortunately it will not work for you men. 实际上，我确信他们之所以让我顺利通过答辩，只是因为那个即将出生的孩子。我告诉他们，预产期随时会到，孩子哪天都可能出生，也许就在答辩现场。他们看起来吓坏了。你们可以想象，大家多快就结束了答辩，好让我离开。顺便说一句，这是值得尝试的小诀窍，但遗憾的是，男同学们用不了。
MIT has helped make me who I am today. I know how hard each of you has worked to get here. I hope that as you embark on this journey called life, you will return one day, as I have done, with good feelings and these same words: "MIT helped make me who I am today". 麻省理工帮助我成为今天的自己。我知道你们每个人为走到这一步付出了多少努力。希望当你们踏上人生旅程后，有一天也能像我一样带着美好的感受回到这里，说出同样的话：“麻省理工帮助我成为今天的自己。”
On top of the demands of one of the world's most famously rigorous academic institutions, your time at MIT has been disrupted by the COVID-19 pandemic. All of you have had to adjust and adapt. 除了在世界上以学业严苛著称的学府求学，你们在麻省理工的时光还受到新冠疫情的打断。你们所有人都不得不调整和适应。
A pandemic is not something I had to deal with as a student, but my education was also interrupted when I was young – by civil war in Nigeria. I did not go to school for 3 years from the ages of 12-15 as my family ran from place to place in Biafra, to escape the 'bombs and shelling. 我当学生时没有经历疫情，但年少时，尼日利亚内战同样中断了我的教育。十二岁到十五岁那三年里，我没有上学，因为我们一家在比夫拉四处逃难，躲避炸弹和炮击。
The images we see from the war in Ukraine today remind me of the suffering I witnessed and endured then. My family made it through but lost everything and had to start over. I was able to go back to school. But my parents made clear to me that education is a privilege – and with that privilege comes responsibility, the responsibility to use it for others, not just for yourself. It is a lesson I still carry with me every day. 今天乌克兰战争的画面，让我想起当年亲眼目睹和亲身承受的苦难。我们一家幸存下来，却失去了一切，只得重新开始。我终于重返校园。但父母向我讲明，受教育是一种特权，而特权伴随着责任：运用所学，不仅为了自己，也为了别人。这是我至今每天都铭记的教诲。
Now, I'm not here to tell you what to do with your lives. But I am here to say that the world needs your smarts, your skills, your adaptability, and the great training you have received here at MIT. The world needs you for innovation, for policy making, for connecting the dots so implementation can actually happen. So let me say a few words on combining science, social science and policy to meet the challenges of our future. 我今天并不是来告诉你们该怎样度过人生。但我想说，世界需要你们的聪明才智、技能、适应能力，以及在麻省理工接受的出色训练。世界需要你们创新、制定政策、连接各个环节，让方案真正得以实施。请允许我谈谈，如何结合自然科学、社会科学与政策来迎接未来挑战。
The difficult and uncertain times we live in have been called a 'polycrisis' – simultaneous, compounding crises in the economy, the environment, public health, and international security. 我们所处的艰难而不确定的时代，被称为“多重危机”：经济、环境、公共卫生和国际安全领域的危机同时出现，并相互加剧。
The COVID-19 pandemic is still with us. Soaring food costs were threatening hunger in poor countries even before the war in Ukraine made the situation much worse. And heatwaves from South Asia to Europe are already lowering this season's farm yields in countries like India – yet another reminder that climate change is here! 新冠疫情仍未离开我们。即使在乌克兰战争让局势更加恶化之前，食品价格飙升就已使贫穷国家面临饥饿威胁。从南亚到欧洲的热浪，已经使印度等国这一季的农作物减产，再次提醒我们气候变化已经到来！
MIT – the university, its faculty and researchers, its students, and you, its freshly-minted graduates – sit squarely in the middle of providing the multi-faceted solutions we need to the challenges we confront. 麻省理工这所大学，它的教师、研究人员、学生，以及刚毕业的你们，正处在为这些挑战提供多方面解决方案的核心位置。
Let me explain why. A common thread running through many of these challenges is the central role for science. We need technological innovation to get us out of the holes we are in. At the same time, for the kinds of problems we're dealing with, new inventions, and new ways of doing things, will have an impact mainly to the extent that they are scaled up across dividing lines of income and geography. 让我解释原因。许多挑战有一条共同线索：科学发挥着核心作用。我们需要技术创新，才能走出当前困境。与此同时，面对这类问题，新发明和新做法只有跨越收入与地理界线、得到大规模推广，才能真正发挥影响。
We don't just need vaccines; we need shots in arms across the world to be safe. We need new renewable technologies, diffused not just in rich countries, to fight climate change, but also in poor ones. We need new agricultural technologies built adapted to local conditions and culture if we are to fight hunger. In other words, we need innovation, but we also need access and diffusion. 我们需要的不只是疫苗；要确保安全，还必须让世界各地的人都接种。为应对气候变化，我们需要新的可再生能源技术，不仅在富国推广，也在穷国推广。为战胜饥饿，我们需要适合当地条件和文化的新农业技术。换句话说，我们需要创新，也需要让创新成果可及并广泛传播。
We need to get the science right. And we need to get the domestic and international policy frameworks, the incentive structures, and the public and private investments right, too. MIT, of course, is perched at the cutting edge of both science, social science and public policy. 科学本身必须做对；国内与国际政策框架、激励机制，以及公共和私人投资，也都必须安排妥当。麻省理工当然处在自然科学、社会科学和公共政策的前沿。
To buttress the case I'm making, I want to look at some scientific and public policy issues associated with the COVID-19 response, as well as climate change. As a proud MIT alum, I will also look at how the MIT community has been working on these 21st century problems since at least the 1970s. 为进一步说明我的观点，我想看看新冠疫情应对和气候变化涉及的科学与公共政策问题。作为一名自豪的麻省理工校友，我也会回顾至少从20世纪70年代起，麻省理工群体如何着手解决这些二十一世纪的问题。
As Director-General of the World Trade Organization, I shall link this to where multilateralism and trade has been a force for good, amplifying and diffusing new ideas and new technology. But I shall also comment on where international cooperation has been falling short in getting policy frameworks and solutions right. 作为世界贸易组织总干事，我会谈到多边主义与贸易如何发挥积极作用，放大并传播新思想和新技术；我也会指出国际合作在制定正确政策框架和解决方案方面有哪些不足。
Turning now to the global challenges, it's clear that a few of President Reif's big preoccupations – getting the innovation we need, and speeding up the time between new ideas and commercialized products – are directly relevant to the road we are travelling now as a global community and to the road ahead. 说到全球挑战，显然，赖夫校长特别关心的几项大问题——获得我们所需的创新，以及缩短新想法转变为商业产品的时间——与全球社会当前和未来要走的道路直接相关。
When we look at The COVID-19 response: we see we had good science, but not so good politics and policy. 看看新冠疫情应对，我们会发现：科学表现良好，政治和政策却没那么好。
We knew a pandemic was overdue – Bill Gates even gave a famous TED talk about the risks back in 2015. 我们知道，大流行迟早会出现——比尔·盖茨甚至早在2015年就发表过一场著名演讲，提醒人们注意这种风险。
But we weren't ready. This has been made painfully clear by the roughly 15 million excess deaths worldwide over the past two and a half years, as estimated by the World Health Organization. 但我们没有准备好。世界卫生组织估计，过去两年半里全球约有一千五百万例超额死亡，这残酷地说明了这一点。
At the national and international levels, we hadn't made the necessary health system investments. Nor had we put in place the governance arrangements and early warning systems needed to identify and contain potentially dangerous new pathogens. In other words policy wise, pandemic preparedness was, on a global level, totally missing. 在国家和国际层面，我们没有对卫生系统作出必要投资，也没有建立识别并遏制潜在危险新病原体所需的治理安排和预警系统。换句话说，从政策角度看，全球几乎完全没有做好大流行的应对准备。
But we were fortunate that scientists were better prepared. Science enabled us to address "a global public bad", thereby saving millions of lives. 幸运的是，科学家准备得更充分。科学让我们得以应对这种“全球公共危害”，从而挽救数百万人的生命。
Safe and effective vaccines came online in the space of mere months after the novel coronavirus was identified. But this seemingly overnight success was years – decades even – in the making. And MIT was at the heart of this story. 新型冠状病毒被发现后，仅过几个月，安全有效的疫苗就问世了。但这种看似一夜之间取得的成功，实际上经过了多年，甚至几十年的积累。麻省理工正处于这段历程的中心。
At MIT's Center for Cancer Research in the 1970s – back when Kendall Square was still mostly warehouses and factories – future Institute Professor and Nobel laureate Phillip Sharp discovered RNA splicing. His work revealed the potential of messenger RNA, the technology behind the most effective COVID-19 vaccines. 20世纪70年代，在麻省理工癌症研究中心——那时的肯德尔广场还主要是仓库和工厂——后来成为学院教授和诺贝尔奖得主的菲利普·夏普发现了核糖核酸剪接。他的研究揭示了信使核糖核酸的潜力，而这正是最有效的新冠疫苗背后的技术。
Around the same time, another future Institute Professor, Robert Langer – D.Sc. in chemical engineering, MIT class of 1974 – began decades of pioneering work on the drug delivery of large molecules, including mRNA. In 2010, he participated in the founding of a company that aimed to do something totally new – to develop modified RNA therapeutics. That company struggled for years, high on promise but low on cash, until the COVID-19 pandemic struck, and Moderna's vaccine made it a household name. 差不多同时，另一位后来的学院教授罗伯特·兰格——麻省理工1974届化学工程博士——开始了几十年的开创性研究，探索包括信使核糖核酸在内的大分子药物如何递送。2010年，他参与创办一家立志做全新事情的公司：开发经过修饰的核糖核酸疗法。这家公司多年艰难求存，前景远大却资金紧张，直到新冠疫情暴发，莫德纳疫苗让它家喻户晓。
But even though the world got the innovation it needed and it was successfully commercialized, we fell short on access. When vaccines became available, we did not prioritize the most vulnerable populations and frontline workers in all countries. 但即使世界获得了所需创新，并成功将其商业化，我们仍未让成果充分普及。疫苗问世时，我们没有在所有国家优先照顾最脆弱的人群和一线工作人员。
Instead, much of 2021 saw what WHO Director-General Tedros Ghebreyesus described as, and I quote, “a handful of rich countries gobbling up the anticipated supply as manufacturers sell to the highest bidder, while the rest of the world scramble[d] for the scraps.” 相反，2021年大部分时间里，出现了世界卫生组织总干事谭德塞所描述的情景。我引用他的话：“少数富裕国家争相吞下预期的供应量，因为制造商把疫苗卖给出价最高者，世界其他地方只能争抢残羹剩饭。”
As with lifesaving HIV/AIDS drugs twenty years ago, people in poor countries, especially in Africa, found themselves at the back of the queue for COVID-19 vaccines. The COVAX facility, which I am proud to say I participated in birthing, as an ambitious attempt to avoid a repeat of that experience, by getting vaccines to poor countries at the same time as rich ones, was frustrated in its goals by vaccine nationalism and a lack of international solidarity. 就像二十年前挽救生命的艾滋病药物一样，穷国人民，尤其是非洲人民，在获取新冠疫苗时又被排在队伍末尾。我曾参与促成“新冠疫苗实施计划”，对此深感自豪。它雄心勃勃，旨在让穷国和富国同时获得疫苗，避免重蹈覆辙；但疫苗民族主义和国际团结的缺失，阻碍了这一目标的实现。
While global vaccine supplies have now increased, the lag in getting this to poor countries allowed apathy and vaccine hesitancy to set in, leading to a situation where on the back of weak health systems, only 17% of people in Africa, and 13% of people in low-income countries, have been fully vaccinated, compared to 75% of people in high income countries. Since we all know that no one is safe until everyone is safe, the risk of more dangerous variants remains real because of this public policy lapse and the lack of timely international cooperation. 虽然全球疫苗供应如今增加了，但送达穷国的延迟让冷漠和疫苗犹豫蔓延。加之卫生系统薄弱，非洲只有17%的人口、低收入国家只有13%的人口完成接种，高收入国家的比例却为75%。我们都知道，只有人人安全，个人才真正安全；由于公共政策的失误和国际合作不及时，出现更危险变异株的风险依然真实存在。
Climate change is another problem that we cannot solve without scientific innovation – and diffusion. 气候变化是另一个离不开科学创新及其推广的问题。
We have made real progress. Solar and wind generation costs have plummeted – with trade and international competition playing important roles in driving costs down. But storing that energy is still expensive, so we still need breakthroughs there – like we do on cutting emissions from marine and air transport, from industry, from buildings, and from agriculture and land use. 我们确实取得了进展。太阳能和风能发电成本大幅下降，贸易和国际竞争在降低成本方面发挥了重要作用。但储存这些能源仍然昂贵，所以我们还需要在这方面取得突破，也需要减少海运、航空、工业、建筑、农业和土地利用造成的排放。
We also need more uptake of existing green technologies: For all the Teslas we might see around here, only 4.5% of vehicles in the US are electric. 我们也需要更广泛地采用现有绿色技术：尽管在这里或许经常看到特斯拉汽车，美国车辆中只有4.5%是电动车。
But MIT researchers are at the forefront of research on batteries and energy storage. The MIT Energy Initiative is working to meet energy needs while minimizing climate and other environmental impacts. The Future Energy Systems Center is doing research on every imaginable aspect of the low-carbon transition, from how to produce hydrogen at scale, to assessing zero-carbon options for moving freight over long distances. The D-Lab is helping bring energy to off-grid communities. MIT urban planners are thinking about how to make the megacities of the future both livable and sustainable. 麻省理工研究人员处在电池与储能研究的前沿。麻省理工能源倡议致力于满足能源需求，同时尽量减少对气候和其他环境方面的影响。未来能源系统中心研究低碳转型的方方面面，从如何大规模生产氢气，到评估长途货运的零碳方案。麻省理工发展实验室帮助离网社区获得能源。麻省理工的城市规划者则在思考，怎样让未来的特大城市既宜居又可持续。
So science and innovation are hard at work to help bring solutions to an existential threat of our time. A threat that science also helped to elucidate with the wonderful work of the IPCC, Intergovernmental Panel on Climate Change. 因此，科学和创新正努力为我们这个时代的生存性威胁寻找解决方案。政府间气候变化专门委员会的出色工作，也帮助科学界认识了这一威胁。
But to make these innovations transformative and central to decarbonization of the world, international cooperation is key and once again the world is failing. Six months ago, at COP26 in Glasgow, it became clear that the rich world is again unable and unwilling to fulfil the pledge it made in the Paris Accords of 2015 to put together financing of $100 billion a year to support poor countries, (whose contributions to carbon emissions have been minimal,) to help them make the transition to a low carbon future by taking advantage of new renewable and other technologies. 但要让这些创新发挥变革作用，成为全球脱碳的核心，国际合作至关重要，而世界再次未能做到。六个月前，在格拉斯哥举行的第二十六届联合国气候变化大会上，富裕国家显然再次无法、也不愿兑现2015年《巴黎协定》下每年筹集一千亿美元的承诺。这笔资金原本要帮助碳排放贡献极少的穷国运用新的可再生能源及其他技术，转向低碳未来。
It is these kinds of public policy failures, these lapses in harnessing science and innovation for the greater public good that drew me to the career that I have pursued in international development. The question that I asked myself was: How can we allow people to die or to remain poor when the science and innovation to change their lives exists? And what can I do about it? 正是这类公共政策失败，以及未能把科学和创新用于更广泛公共利益的缺失，促使我投身国际发展事业。我问自己：明明已经存在可以改变人们生活的科学和创新，我们怎能任由人们死亡或持续贫困？我又能做些什么？
My training at MIT gave me the framework I needed to pursue the career path I followed in international development. It was training that would enable me as a practitioner and policy maker, to connect science and innovation to peoples' lives and to make a difference. Now a few examples: 在麻省理工所受的训练，为我后来从事国际发展提供了所需的思维框架。它使我作为实践者和政策制定者，能够把科学与创新同人们的生活连接起来，并带来改变。下面举几个例子：
At the World Bank, I had the opportunity to bring the then innovative approach of sites and services development, that we studied in DUSP, to poor urban dwellers in Spanish Town, Jamaica, to enable them build their own homes incrementally overtime, thereby creating an asset and creating wealth for them for the first time in their lives. When I worked on agriculture, it was bringing improved seeds and new agricultural technologies to poor farmers in Africa and the Middle East to enable them improve their incomes and household welfare at a pace they could not have imagined possible. 在世界银行，我有机会把当年在城市研究与规划系学到的、彼时颇具创新性的“场地与服务”开发方法，带给牙买加西班牙镇的贫困城市居民，让他们随着时间逐步建造自己的住房，从而第一次拥有资产、积累财富。我从事农业工作时，则把改良种子和新农业技术带给非洲和中东的贫困农民，使他们的收入和家庭福祉以过去难以想象的速度提高。
In Nigeria, as Finance Minister and working with the Minister of Agriculture, we implemented budgetary policies that put mobile phones in the hands of 2 million women farmers so that through their electronic wallets they could directly receive government vouchers that enabled them to access improved seeds and fertilizers. With respect to finance we put in place a technology based financial management solution with biometrics that enabled government to weed out millions of ghost workers and ghost pensioners, and save over $1 billion in fraudulent salary and pension claims. 在尼日利亚担任财政部长时，我与农业部长合作，实施预算政策，让两百万名女性农民拥有手机，得以通过电子钱包直接领取政府补助券，购买改良种子和化肥。在财政管理方面，我们建立了采用生物识别技术的财务管理系统，让政府清除数百万名虚报雇员和虚报养老金领取者，并避免了超过十亿美元的欺诈性工资与养老金支出。
When I joined Gavi, the Vaccine Alliance, bridging the gap between science and public policy meant supporting the piloting of a new Malaria vaccine that could save millions of children's lives and stockpiling an experimental Ebola vaccine, giving millions more people a chance at survival, should Ebola strike again. 加入全球疫苗免疫联盟后，弥合科学与公共政策之间的鸿沟，意味着支持试验一种可能挽救数百万儿童生命的新型疟疾疫苗，并储备试验性埃博拉疫苗，以便埃博拉再次暴发时，让另外数百万人获得生存机会。
And at the WTO bridging the gap meant the ability to work with Vaccine Manufacturers to deal with problems in their complicated supply chains so that trade in inputs could flow freely and enable them to scale up COVID 19 vaccine production for the world. It has also meant the fight to allow more flexible access to IP rights for COVID 19 vaccines, whilst protecting incentives for research and development, so that developing countries can undertake their own vaccine manufacturing. 在世界贸易组织，弥合这一鸿沟意味着与疫苗制造商合作，解决复杂供应链中的问题，使生产投入品顺畅流通，帮助他们扩大面向全世界的新冠疫苗产量。这也意味着，在保护研发激励的同时，争取更灵活地使用新冠疫苗知识产权，让发展中国家能够自行生产疫苗。
Ladies and Gentlemen, dear Graduands, the problem solving approach I have taken in my career, my quest to bridge gaps between science, innovation and public policy, to take a bit of risk, to try new approaches, has paid off in a rewarding career whose satisfaction is the ability to serve others. 女士们、先生们，亲爱的毕业生们，我在职业生涯中采取解决问题的方法，努力弥合科学、创新与公共政策之间的鸿沟，愿意承担一些风险，尝试新方法。这些努力使我的事业充实而有意义，而其中的满足感来自服务他人。
So in these uncertain times, in this complex world in which you are entering, you need not be so daunted if you can search for the opportunities hidden in challenges, if you can take some considered risk and try new approaches. Create new pathways, and if you can connect the dots in disconnected approaches to problem solving. 因此，当你们走进这个复杂而充满不确定性的世界，如果能在挑战中寻找隐藏的机遇，审慎承担风险、尝试新方法、开辟新道路，并把彼此割裂的解决思路连接起来，就不必如此畏惧。
Let me conclude by saying that you have all succeeded in making it through in truly extraordinary times. To paraphrase Nelson Mandela, you have made what seemed impossible, possible! Your parents and faculty are rightly proud of you, so am I. So, go out into the world and embrace the opportunities to serve! I wish you all the very best. Congratulations once again and God speed! 最后，我想说，你们都在真正非凡的时期成功走到了今天。借用纳尔逊·曼德拉的话，你们把看似不可能的事变成了可能！你们的父母和老师理应为你们骄傲，我也是如此。所以，走向世界，拥抱服务他人的机会吧！祝你们一切顺利。再次祝贺，愿你们一路平安！