We get that our greatest opportunities are now global -- we can be the generation that ends poverty, that ends disease. We get that our greatest challenges need global responses too -- no country can fight climate change alone or prevent pandemics. Progress now requires coming together not just as cities or nations, but also as a global community.

我们认为现在最大的机会是全球性的 - 我们可以成为终结贫穷和结束疾病的一代人。但同时我们也意识到我们面临的巨大挑战也需要全球性的协作 - 没有一个国家可以单独应对气候变化或预防全球大瘟疫。要想取得进步不能靠单个城市或国家，更是要团结全球社会。

But we live in an unstable time. There are people left behind by globalization across the world. It's hard to care about people in other places if we don’t feel good about our lives here at home. There’s pressure to turn inwards.

但我们生活在一个不稳定的时期。有人被全球化所抛弃。如果我们对我们自己的生活感到困扰，那么很难在别的地方照顾别人，因为有内在的压力。

This is the struggle of our time. The forces of freedom, openness and global community against the forces of authoritarianism, isolationism and nationalism. Forces for the flow of knowledge, trade and immigration against those who would slow them down. This is not a battle of nations, it's a battle of ideas. There are people in every country for global connection and good people against it.

这是我们时代的斗争。有支持自由，开放和反对威权主义，孤立主义和民族主义势力的力量。有支持知识流动，贸易和移民。这不是一场国家之间的斗争，而是一场思想的斗争。每个国家的人们都有支持和反馈全球化的人。

This isn't going to be decided at the UN either. It's going to happen at the local level, when enough of us feel a sense of purpose and stability in our own lives that we can open up and start caring about everyone. The best way to do that is to start building local communities right now.

这不会在联合国决定。这将在每个地区发生，当我们足够的感觉到我们自己的使命和稳定感，我们可以开始关心其他人。最好的办法是开始建立当地的社群。

We all get meaning from our communities. Whether our communities are houses or sports teams, churches or music groups, they give us that sense we are part of something bigger, that we are not alone; they give us the strength to expand our horizons.

我们都从我们的社群中获得意义。无论我们的社群是邻里社区还是运动小组，教堂或音乐团体。他们给我们归属感，我们属于的群体的一部分，我们不是一个人;社群给了我们扩大我们的视野的力量。

That's why it's so striking that for decades, membership in all kinds of groups has declined as much as one-quarter. That's a lot of people who now need to find purpose somewhere else.

这就是为什么这几十年来各类团体的会员人数下降了四分之一的事实是多么需要引起注意！现在很多人都需要在别的地方寻找生活的使命。

But I know we can rebuild our communities and start new ones because many of you already are.

但是，我知道我们可以重建我们的社群，因为你们中许多人已经开始行动了。

I met Agnes Igoye, who's graduating today. Where are you, Agnes? She spent her childhood navigating conflict zones in Uganda, and now she trains thousands of law enforcement officers to keep communities safe.

我遇到了今天毕业的Agnes Igoye，（对现场说，你在哪里，Agnes？）她在乌干达的冲突地区度过童年时期，现在她在训练数以千计的执法人员来保持社区的安全。

I met Kayla Oakley and Niha Jain, graduating today, too. Stand up. Kayla and Niha started a non-profit that connects people suffering from illnesses with people in their communities willing to help.

我遇到Kayla和Niha，也是今天毕业，他们发起了一个非营利组织，将患有疾病的人与社区内愿意帮助他们的人联系起来。

I met David Razu Aznar, graduating from the Kennedy School today. David, stand up.

我遇到了David Razu Aznar，今天从肯尼迪政治学院毕业（对现场说，David站起来）。

He’s a former city councilor who successfully led the battle to make Mexico City the first Latin American city to pass marriage equality -- even before San Francisco.

他是前墨西哥市的议员，他成功领导了一场运动，使墨西哥城成为第一个通过婚姻平等法案的拉丁美洲城市，甚至比旧金山还早。

This is my story too. A student in a dorm room, connecting one community at a time, and keeping at it until one day we connect the whole world.

这也是我自己的故事。一个宅在宿舍的学生，一次连接了一个社群，然后始终维护它，直到有一天我们连接了整个世界。