For decades, this vision stood in sharp contrast to life on the other side of an Iron Curtain. For decades, a contest was waged, and ultimately that contest was won -- not by tanks or missiles, but because our ideals stirred the hearts of Hungarians who sparked a revolution; Poles in their shipyards who stood in Solidarity; Czechs who waged a Velvet Revolution without firing a shot; and East Berliners who marched past the guards and finally tore down that wall. Today, what would have seemed impossible in the trenches of Flanders, the rubble of Berlin, or a dissident’s prison cell -- that reality is taken for granted. A Germany unified. The nations of Central and Eastern Europe welcomed into the family of democracies. Here in this country, once the battleground of Europe, we meet in the hub of a Union that brings together age-old adversaries in peace and cooperation. The people of Europe, hundreds of millions of citizens -- east, west, north, south -- are more secure and more prosperous because we stood together for the ideals we share. And this story of human progress was by no means limited to Europe. Indeed, the ideals that came to define our alliance also inspired movements across the globe among those very people, ironically, who had too often been denied their full rights by Western powers. After the Second World War, people from Africa to India threw off the yoke of colonialism to secure their independence. In the United States, citizens took freedom rides and endured beatings to put an end to segregation and to secure their civil rights. As the Iron Curtain fell here in Europe, the iron fist of apartheid was unclenched, and Nelson Mandela emerged upright, proud, from prison to lead a multiracial democracy. Latin American nations rejected dictatorship and built new democracies, and Asian nations showed that development and democracy could go hand in hand.

Time and again, history shows that it's from the darkest moments that the greatest progress follows. And history shows, this is the task of our time, the task of this generation. Let's remember: The hammer blow that brought down the Berlin Wall, the might that lifted the Iron Curtain were not the words of a single leader, it was the people of Europe who, for decades, fought to free themselves.

Also today, the yearning for freedom may well make totalitarian regimes tremble and fall. We have followed with great interest and empathy the profound changes in North Africa and in the Arab world. Freedom is indivisible. Each and every one has the same right to freedom, be it in North Africa or Belarus, in Myanmar or Iran. Still, the struggle for freedom is demanding far too many sacrifices, and claiming far too many victims. My thoughts are with our soldiers, our policemen, and the many, many volunteers who try to help. I humbly bow to all those who risk their lives for the cause of freedom.

The wish for freedom is contagious, that's why all tyrants fear it. Freedom seen from close up inspires human strivings. Its triumphant march began in Poland.

The desire for freedom resides in every human heart. And that desire cannot be contained forever by prison walls, or martial laws, or secret police. Over time, and across the Earth, freedom will find a way.

Oppressed people cannot remain oppressed forever. The yearning for freedom eventually manifests itself.

freedom the masses crave is not freedom of self-expression and self-realization, but freedom from the intolerable burden of an autonomous existence. They want freedom from “the fearful burden of free choice,”19 freedom from the arduous responsibility of realizing their ineffectual selves and shouldering the blame for the blemished product. They do not want freedom of conscience, but faith — blind, authoritarian faith. They sweep away the old order not to create a society of free and independent men, but to establish uniformity, individual anonymity and a new structure of perfect unity. It is not the wickedness of the old regime they rise against but its weakness; not its oppression, but its failure to hammer them together into one solid, mighty whole.

For all these reasons, the nations of this body must challenge tyranny as vigorously as we challenge terror. Some question whether people in certain parts of the world actually desire freedom. This self-serving condescension has been disproved before our eyes. From the voting booths of Afghanistan, Iraq, and Liberia to the Orange Revolution in Ukraine and the Rose Revolution in Georgia to the Cedar Revolution in Lebanon and the Tulip Revolution in Kyrgyzstan, we have seen people consistently make the courageous decision to demand their liberty. For all the suggestions to the contrary, the truth is that whenever or wherever people are given the choice, they choose freedom.

Today, 60 years after they rose up against oppression, we remember the East German heroes of June 17th. When the wall finally came down, it was their dreams that were fulfilled. Their strength and their passion, their enduring example remind us that for all the power of militaries, for all the authority of governments, it is citizens who choose whether to be defined by a wall, or whether to tear it down.

Today we are coming to realise that an epoch in history is over...For more than forty years that Iron Curtain remained in place. Few of us expected to see it lifted in our life-time. Yet with great suddenness the impossible has happened. Communism is broken, utterly broken...We do not see this new Soviet Union as an enemy, but as a country groping its way towards freedom. We no longer have to view the world through a prism of East-West relations. The Cold War is over.

But the fact that we can stand here today, along the fault line where a city was divided, speaks to an eternal truth: No wall can stand against the yearning of justice, the yearnings for freedom, the yearnings for peace that burns in the human heart.

Oppressed people cannot remain oppressed forever. The yearning for freedom eventually manifests itself, and that is what has happened to the American Negro. Something within has reminded him of his birthright of freedom, and something without has reminded him that it can be gained.

It is the fact that the longing for freedom is not just embedded in every true soul's heart.

If we don’t accept that the nature of a regime shapes its conduct, we risk profoundly misreading international politics. We expect better behavior from despots than we have reason to. We miss what can be the most transformational force for good in the world: the anger of oppressed people, and their hope, their imperishable hope for change. That anger and hope filled the streets of East Berlin twenty-nine years ago, tore down a wall separating half a continent from liberty, and made the United States and our allies a whole lot safer. A world where the human rights of more people in more places are secure is not only a more just world, it’s a safer world. For reasons of basic self-interest we must continue to lead the long, patient effort to make the world freer and more just.