“Scientists and engineers ought to stand side by side with athletes and entertainers as role models.”

“It [is] that courage that Africa most desperately needs.”

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

“The man had received a chemical treatment, the article explained, to lighten his complexion. He had paid for it with his own money. He expressed some regret about trying to pass himself off as a white man, was sorry about how badly things had turned out. But the results were irreversible. There were thousands of people like him, black men and women back in America who’d undergone the same treatment in response to advertisements that promised happiness as a white person.

“Well, amigo … you can talk all you want about saving the world, but this city tends to eat away at such noble sentiments.”

“Maybe the critics are right. Maybe there's no escaping our great political divide, an endless clash of armies, and any attempts to alter the rules of engagement are futile. Or maybe the trivialization of politics has reached a point of no return, so that most people see it as just one more diversion, a sport, with politicians our paunch-bellied gladiators and those who bother to pay attention just fans on the sidelines: We paint our faces red or blue and cheer our side and boo their side, and if it takes a late hit or cheap shot to beat the other team, so be it, for winning is all that matters. But I don't think so. They are out there, I think to myself, those ordinary citizens who have grown up in the midst of all the political and cultural battles, but who have found a way-in their own lives, at least- to make peace with their neighbors, and themselves. ...I imagine they are waiting for a politics with the maturity to balance idealism and realism, to distinguish between what can and cannot be compromised, to admit the possibility that the other side might sometimes have a point. They don't always understand the arguments between right and left, conservative and liberal, but they recognize the difference between dogma and common sense, responsibility and irresponsibility, between those things that last and those that are fleeting. They are out there, waiting for Republicans and Democrats to catch up with them.”

“Words do inspire. ”

“We, the people, declare today that the most evident of truths – that all of us are created equal – is the star that guides us still; just as it guided our forebears through Seneca Falls, and Selma, and Stonewall.”

“Like a tourist, I watched the range of human possibility on display, trying to trace out my future in the lives of the people I saw, looking for some opening through which I could reenter.”

“This pleased Onyango, for to him knowledge was the source of all the white man's power, and he wanted to make sure that his son was as educated as any white man.”

“We have an obligation and a responsibility to be investing in our students and our schools. We must make sure that people who have the grades, the desire and the will, but not the money, can still get the best education possible.”

“Self-reliance and independence can transform into selfishness and license, ambition into greed and a frantic desire to succeed at any cost. More than once in our history we've seen patriotism slide into jingoism, xenophobia, the stifling of dissent; we've seen faith calcify into self-righteousness, closed-mindedness, and cruelty toward others. Even the impulse toward charity can drift into a stifling paternalism, an unwillingness to acknowledge the ability of others to do for themselves. ....In a country as diverse as ours, there will always be passionate arguments about how we draw the line when it comes to government action. That is how our democracy works. But our democracy might work better if we recognized that all of us posses values worthy of respect: if liberals at least acknowledge that the recreational hunter feels the same way about his gun as they feel about their library books, and if conservatives recognized that most women feel as protective of their right to reproductive freedom as evangelicals do of their right to worship.”

“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.”

“There will be setbacks and false starts. There are many who won't agree with every decision or policy I make as president. And we know the government can't solve every problem. But I will always be honest with you about the challenges we face. I will listen to you, especially when we disagree. And, above all, I will ask you to join in the work of remaking this nation, the only way it's been done in America for 221 years -- block by block, brick by brick, calloused hand by calloused hand.”

“A woman named Helen Keller fought her way through long, silent darkness. Though she could not see or hear; she taught us to look at and listen to each other. Never waiting for life to get easier, she gave others courage to face their challenges.”