“Change will not happen if we wait for another person or another time. We are the person that we are waiting for. We are the change that we seek.”

“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.”

“This world is like a big classroom, and USA is the teacher, while other countries are the students, as one student tries to mess with the teacher, or does something really bad. The teacher shall teach him a nice lesson. Use your brain before you try to mess with the odds.”

“There is no excuse for not trying.”

“Let it be told to the future world that in the depth of winter, when nothing but hope and virtue could survive, that the city and the country, alarmed at one common danger, came forth to meet it.” 

“We must lift ourselves up, dust ourselfs off and begin the work of remaking America.”

“The Cambridge police acted stupidly in arresting somebody when there was already proof that they were in their own home. . . . What I think we know — separate and apart from this incident — is that there is a long history in their country of African-Americans and Latinos being stopped by law enforcement disproportionately, and that’s just a fact.”

“I believe in keeping guns out of our inner cities, and that our leaders must say so in the face of the gun manfuacturer’s lobby.”

“We are a people of improbable hope.”

“in a climate of constant technological change.”

“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.”

“You have the ability and gifts to do whatever you want". It is your turn now to change the world. Yes we can!”

“What I’ve realized is that life doesn’t count for much unless you’re willing to do your small part to leave our children — all of our children — a better world. Any fool can have a child. That doesn’t make you a father. It’s the courage to raise a child that makes you a father.”

“In the Catholic school, when it came time to pray, I would pretend to close my eyes, then peek around the room. Nothing happened. No angels descended.”

“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. ”