Where there was want，today there‘s abundance-food，clothing，automobiles-the wonderful goods of the Kudamm.1From devastation，from utter ruin，you Berliners have，in freedom，rebuilt a city that once again ranks as one of the greatest on earth.Now the Soviets may have had other plans.But my friends，there were a few things the Soviets didn’t count on：Berliner Herz，Berliner Humor，ja，und Berliner Schnauze.In the 1950s-In the 1950s Khrushchev predicted：“We will bury you.”But in the West today，we see a free world that has achieved a level of prosperity and well-being unprecedented in all human history.In the Communist world，we see failure，technological backwardness，declining standards of health，even want of the most basic kind-too little food.
Even today，the Soviet Union still cannot feed itself.After these four decades，then，there stands before the entire world one great and inescapable conclusion：Freedom leads to prosperity.Freedom replaces the ancient hatreds among the nations with comity and peace.Freedom is the victor.And now-now the Soviets themselves may，in a limited way，be coming to understand the importance of freedom.We hear much from Moscow about a new policy of reform and openness.Some political prisoners have been released.
Certain foreign news broadcasts are no longer being jammed.Some economic enterprises have been permitted to operate with greater freedom from state control.Are these the beginnings of profound changes in the Soviet state？Or are they token gestures intended to raise false hopes in the West，or to strengthen the Soviet system without changing it？We welcome change and openness；for we believe that freedom and security go together，that the advance of human liberty-the advance of human liberty can only strengthen the cause of world peace.There is one sign the Soviets can make that would be unmistakable，that would advance dramatically the cause of freedom and peace.
General Secretary Gorbachev，if you seek peace，if you seek prosperity for the Soviet Union and Eastern Europe，if you seek liberalization：Come here to this gate.Mr.Gorbachev，open this gate.Mr.Gorbachev-Mr.Gorbachev，tear down this wall！I understand the fear of war and the pain of division that afflict this continent，and I pledge to you my country‘s efforts to help overcome these burdens.To be sure，we in the West must resist Soviet expansion.So，we must maintain defenses of unassailable strength.Yet we seek peace；so we must strive to reduce arms on both sides.
Beginning 10years ago，the Soviets challenged the Western alliance with a grave new threat，hundreds of new and more deadly SS-20nuclear missiles capable of striking every capital in Europe.The Western alliance responded by committing itself to a counter-deployment（unless the Soviets agreed to negotiate a better solution）-namely，the elimination of such weapons on both sides.For many months，the Soviets refused to bargain in earnestness.As the alliance，in turn，prepared to go forward with its counter-deployment，there were difficult days，days of protests like those during my 1982visit to this city；and the Soviets later walked away from the table.But through it all，the alliance held firm.And I invite those who protested then-I invite those who protest today-to mark this fact：Because we remained strong，the Soviets came back to the table.Because we remained strong，today we have within reach the possibility，not merely of limiting the growth of arms，but of eliminating，for the first time，an entire class of nuclear weapons from the face of the earth.
As I speak，NATO ministers are meeting in Iceland to review the progress of our proposals for eliminating these weapons.At the talks in Geneva，we have also proposed deep cuts in strategic offensive weapons.And the Western allies have likewise made far-reaching proposals to reduce the danger of conventional war and to place a total ban on chemical weapons.While we pursue these arms reductions，I pledge to you that we will maintain the capacity to deter Soviet aggression at any level at which it might occur.And in cooperation with many of our allies，the United States is pursuing the Strategic Defense Initiative-research to base deterrence not on the threat of offensive retaliation，but on defenses that truly defend；on systems，in short，that will not target populations，but shield them.By these means we seek to increase the safety of Europe and all the world.But we must remember a crucial fact：East and West do not mistrust each other because we are armed；we are armed because we mistrust each other.And our differences are not about weapons but about liberty.
When President Kennedy spoke at the City Hall those 24years ago，freedom was encircled；Berlin was under siege.And today，despite all the pressures upon this city，Berlin stands secure in its liberty.And freedom itself is transforming the globe.In the Philippines，in South and Central America，democracy has been given a rebirth.Throughout the Pacific，free markets are working miracle after miracle of economic growth.In the industrialized nations，a technological revolution is taking place，a revolution marked by rapid，dramatic advances in computers and telecommunications.In Europe，only one nation and those it controls refuse to join the community of freedom.Yet in this age of redoubled economic growth，of information and innovation，the Soviet Union faces a choice：It must make fundamental changes，or it will become obsolete.