“And as John F. Kennedy described the ideals behind what would become the Peace Corps, he issued a challenge to the students who had assembled in Ann Arbor on that October night: “on your willingness to contribute part of your life to this country,” he said, will depend the answer whether a free society can compete. I think it can,” he said.”

“Studying in countries like China isn't only about your prospects in the global marketplace. It's not just about whether you can compete with your peers in other countries to make America stronger. It's also about whether you can come together and work together with them to make our world stronger. It's about the friendships you make, the bonds of trust you establish and the image of America that you project to the rest of the world.”

“When we don’t pay close attention to the decisions made by our leaders, when we fail to educate ourselves about the major issues of the day, when we choose not to make our voices and opinions heard, that’s when democracy breaks down. That’s when power is abused. That’s when the most extreme voices in our society fill the void that we leave. That’s when powerful interests and their lobbyists are most able to buy access and influence in the corridors of power –- because none of us are there to speak up and stop them. Participation in public life doesn’t mean that you all have to run for public office -– though we could certainly use some fresh faces in Washington. (Laughter and applause.) But it does mean that you should pay attention and contribute in any way that you can. Stay informed. Write letters, or make phone calls on behalf of an issue you care about. If electoral politics isn’t your thing, continue the tradition so many of you started here at Michigan and find a way to serve your community and your country –- an act that will help you stay connected to your fellow citizens and improve the lives of those around you.”

“This democracy we have is a precious thing. For all the arguments and all the doubts and all the cynicism that’s out there today, we should never forget that as Americans, we enjoy more freedoms and opportunities than citizens in any other nation on Earth. (Applause.) We are free to speak our mind and worship as we please. We are free to choose our leaders, and criticize them if they let us down. We have the chance to get an education, and work hard, and give our children a better life.None of this came easy. None of this was preordained. The men and women who sat in your chairs 10 years ago and 50 years ago and 100 years ago –- they made America possible through their toil and their endurance and their imagination and their faith. Their success, and America’s success, was never a given. And there is no guarantee that the graduates who will sit in these same seats 10 years from now, or 50 years from now, or 100 years from now, will enjoy the same freedoms and opportunities that you do. You, too, will have to strive. You, too, will have to push the boundaries of what seems possible. For the truth is, our nation’s destiny has never been certain.What is certain -– what has always been certain -– is the ability to shape that destiny. That is what makes us different. That is what sets us apart. That is what makes us Americans -– our ability at the end of the day to look past all of our differences and all of our disagreements and still forge a common future. That task is now in your hands, as is the answer to the question posed at this university half a century ago about whether a free society can still compete.”

“To those leaders around the globe who seek to sow conflict, or blame their society's ills on the West - know that your people will judge you on what you can build, not what you destroy.”

“For we have a choice in this country. We can accept a politics that breeds division, and conflict, and cynicism. We can tackle race only as spectacle-as we did in the OJ trial-or in the wake of tragedy, as we did in the aftermath of Katrina-or as a fodder for the nightly news. We can play Reverend Wright's sermons on every channel, every day and talk about them from now until the election, and make the only question in this campaign whether or not the American people think that I somehow believe or sympathize with his most offensive words. We can pounce on some gaffe by a Hillary supporter as evidence that she's playing the race card, or we can speculate on whether white men will all flock to John McCain the general election regardless of his policies. We can do that. But if we do, I can tell you that in the next election, we'll be talking about some other distraction. And then another one. And then another one. And nothing will change. That is one option. Or, at this moment, in this election, we can come together and say, "Not this time.”

“Here's the truth: the Soviet Union had thousands of nuclear weapons, and Iran doesn't have a single one. But when the world was on the brink of nuclear holocaust, Kennedy talked to Khrushchev and he got those missiles out of Cuba. Why shouldn't we have the same courage and the confidence to talk to our enemies? That's what strong countries do, that's what strong presidents do, that's what I'll do when I'm president of the United States of America.”