He knew, better than the cynic, that if you look out over the arc of history, human beings should be filled not with fear but with hope. - Barack Obama

The wall belongs to history. But we have history to make as well. And the heroes that came before us now call to us to live up to those highest ideals -- to care for the young people who can't find a job in our own countries, and the girls who aren't allowed to go to school overseas; to be vigilant in safeguarding our own freedoms, but also to extend a hand to those who are reaching for freedom abroad. This is the lesson of the ages. This is the spirit of Berlin. And the greatest tribute that we can pay to those who came before us is by carrying on their work to pursue peace and justice not only in our countries but for all mankind.

All of us share this world for but a brief moment in time. The question is whether we spend that time focused on what pushes us apart, or whether we commit ourselves to an effort - a sustained effort - to find common ground, to focus on the future we seek for our children, and to respect the dignity of all human beings.

the underlying struggle - between worlds of plenty and worlds of want; between the modern and the ancient; between those who embrace our teeming, colliding, irksome diversity, while still insisting on a set of values that binds us together, and those who would seek, under whatever flag or slogan or sacred text, a certainty and simplification that justifies cruelty toward those not like us...