“Each path to knowledge involves different rules and these rules are not interchangeable.”

“It was as if he had come to mistrust words somehow. Words, and the sentiments words carried.”

“Hope is what led a band of colonists to rise up against an empire; what led the greatest of generations to free a continent and heal a nation; what led young women and young men to sit at lunch counters and brave fire hoses and march through Selma and Montgomery for freedom's cause. Hope is what led me here today -- with a father from Kenya, a mother from Kansas; and a story that could only happen in the United States of America. Hope is the bedrock of this nation; the belief that our destiny will not be written for us, but by us; by all those men and women who are not content to settle for the world as it is; who have courage to remake the world as it should be.

“This election is about the past vs. the future. It's about whether we settle for the same divisions and distractions and drama that passes for politics today or whether we reach for a politics of common sense and innovation, a politics of shared sacrifice and shared prosperity. There are those who will continue to tell us that we can't do this, that we can't have what we're looking for, that we can't have what we want, that we're peddling false hopes. But here is what I know. I know that when people say we can't overcome all the big money and influence in Washington, I think of that elderly woman who sent me a contribution the other day, an envelope that had a money order for $3.01 along with a verse of scripture tucked inside the envelope. So don't tell us change isn't possible. That woman knows change is possible. When I hear the cynical talk that blacks and whites and Latinos can't join together and work together, I'm reminded of the Latino brothers and sisters I organized with and stood with and fought with side by side for jobs and justice on the streets of Chicago. So don't tell us change can't happen. When I hear that we'll never overcome the racial divide in our politics, I think about that Republican woman who used to work for Strom Thurmond, who is now devoted to educating inner city-children and who went out into the streets of South Carolina and knocked on doors for this campaign. Don't tell me we can't change. Yes, we can. Yes, we can change. Yes, we can. Yes, we can heal this nation. Yes, we can seize our future. And as we leave this great state with a new wind at our backs and we take this journey across this great country, a country we love, with the message we carry from the plains of Iowa to the hills of New Hampshire, from the Nevada desert to the South Carolina coast, the same message we had when we were up and when we were down, that out of many, we are one; that while we breathe, we will hope. And where we are met with cynicism and doubt and fear and those who tell us that we can't, we will respond with that timeless creed that sums up the spirit of the American people in three simple words -- yes, we can.”

“The most important stuff I’ve learned I think I’ve learned from novels. It has to do with empathy. It has to do with being comfortable with the notion that the world is complicated and full of grays, but there’s still truth there to be found, and that you have to strive for that and work for that. And the notion that it’s possible to connect with some[one] else even though they’re very different from you.”

“What I could not support was "a dumb war, a rash war, a war based not on reason but on passion, not on principle but on politics"

“We've been warned against offering the people of this nation false hope. But in the unlikely story that is America, there has never been anything false about hope.”

“By dint of vision, and determination, and most of all faith in the redeeming power of love, he endured the humiliation of arrest, the loneliness of a prison cell, the constant threats to his life, until he finally inspired a nation to transform itself, and begin to live up to the meaning of its creed.”

“We will extend our arms to you[world] if you unclench your fists.”

“Our Founding Fathers, faced with perils we can scarcely imagine, drafted a charter to assure the rule of law and the rights of man, a charter expanded by the blood of generations. Those ideals still light the world, and we will not give them up for expedience’s sake.”

“in the state capital. But the years had also taken their toll. Some of it was just a function of my getting older, I suppose, for if you are paying attention,”

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; just as it guided all those men and women, sung and unsung, who left footprints along this great Mall, to hear a preacher say that we cannot walk alone; to hear a King proclaim that our individual freedom is inextricably bound to the freedom of every soul on Earth

“My main message is to the parents of Trayvon Martin. You know, if I had a son, he’d look like Trayvon.”

“Change won't come from the top, Change will come from mobilized grassroots.”

“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.”