“More than a building that houses books and data, the library has always been a window to a larger world--a place where we've always come to discover big ideas and profound concepts that help move the American story forward. . . . . Libraries remind us that truth isn't about who yells the loudest, but who has the right information. Because even as we're the most religious of people, America's innovative genius has always been preserved because we also have a deep faith in facts. And so the moment we persuade a child, any child, to cross that threshold into a library, we've changed their lives forever, and for the better. This is an enormous force for good.”

“We will restore science to its rightful place and wield technology's wonders to raise health care's quality and lower its cost.”

“If you're walking down the right path and you're willing to keep walking, eventually you'll make progress.”

“If you’re going to do this work, Barack, you’ve got to stop worrying about whether people like you. They won’t.” Patronage,”

“As president, I believe that robotics can inspire young people to pursue science and engineering. And I also want to keep an eye on those robots in case they try anything.”

“Mainly, though, the Democratic Party has become the party of reaction. In reaction to a war that is ill conceived, we appear suspicious of all military action. In reaction to those who proclaim the market can cure all ills, we resist efforts to use market principles to tackle pressing problems. In reaction to religious overreach, we equate tolerance with secularism, and forfeit the moral language that would help infuse our policies with a larger meaning. We lose elections and hope for the courts to foil Republican plans. We lost the courts and wait for a White House scandal. And increasingly we feel the need to match the Republican right in stridency and hardball tactics. The accepted wisdom that drives many advocacy groups and Democratic activists these days goes like this: The Republican Party has been able to consistently win elections not by expanding its base but by vilifying Democrats, driving wedges into the electorate, energizing its right wing, and disciplining those who stray from the party line. If the Democrats ever want to get back into power, then they will have to take up the same approach. ...Ultimately, though, I believe any attempt by Democrats to pursue a more sharply partisan and ideological strategy misapprehends the moment we're in. I am convinced that whenever we exaggerate or demonize, oversimplify or overstate our case, we lose. Whenever we dumb down the political debate, we lose. For it's precisely the pursuit of ideological purity, the rigid orthodoxy and the sheer predictability of our current political debate, that keeps us from finding new ways to meet the challenges we face as a country. It's what keeps us locked in "either/or" thinking: the notion that we can have only big government or no government; the assumption that we must either tolerate forty-six million without health insurance or embrace "socialized medicine". It is such doctrinaire thinking and stark partisanship that have turned Americans off of politics. ”

“Our challenges may be new. The instruments with which we meet them may be new. But those values upon which our success depends - honesty and hard work, courage and fair play, tolerance and curiosity, loyalty and patriotism - these things are old. These things are true. They have been the quiet force of progress throughout our history. What is demanded then is a return to these truths. What is required of us now is a new era of responsibility - a recognition, on the part of every American, that we have duties to ourselves, our nation, and the world, duties that we do not grudgingly accept but rather seize gladly, firm in the knowledge that there is nothing so satisfying to the spirit, so defining of our character, than giving our all to a difficult task.”

“Strange how a single conversation can change you. Or maybe it only seems that way in retrospect.”

“My liberty depends on you being free, too.”

“We’re never so outraged as when a cabbie drives past us or the woman in the elevator clutches her purse, not so much because we’re bothered by the fact that such indignities are what less fortunate coloreds have to put up with every single day of their lives—although that’s what we tell ourselves—but because we’re wearing a Brooks Brothers suit and speak impeccable English and yet have somehow been mistaken for an ordinary nigger.”

“And that brings me to one last point. I've got a simple message for all the dedicated and patriotic federal workers who have either worked without pay, or who have been forced off the job without pay for these last few weeks. Including most of my own staff. Thank you. Thanks for your service. Welcome back. What you do is important. It matters. You defend our country overseas, you deliver benefits to our troops who earned them when they come home, you guard our borders, you protect our civil rights, you help businesses grow and gain footholds in overseas markets. You protect the air we breathe, and the water our children drink, and you push the boundaries of science and space, and you guide hundreds of thousands of people each day through the glories of this country. Thank you. What you do is important, and don't let anybody else tell you different.”

“How could America send men into space and still keep its black citizens in bondage?”

“Ours is not the first generation to understand the dire need for health reform. And I am not the first president to take up this cause, but I am determined to be the last.”

“For half of the world's population, roughly three billion people around the world living on less than two dollars a day, an election is at best a means, not an end; a starting point, not deliverance. These people are looking less for an "electocracy" than for the basic elements that for most of us define a decent life--food, shelter, electricity, basic health care, education for their children, and the ability to make their way through life without having to endure corruption, violence, or arbitrary power.”

“What I would say to my successor is that it is important not just to shoot but to aim”