35年前，20世纪最著名的墙倒塌了，以下是一位经济学家在柏林墙倒塌时写的日记。
My Vivid Memories of the Fall of the Berlin Wall——By David Henderson
November 9, 1989, East Berlin
Gunter Schabowski, the head of the Communist Party of Berlin, is about to go on television for a live press conference. Egon Krenz, Party secretary and leader of East Berlin, hands him a draft of a new regulation from the Interior Ministry. The draft describes new procedures for obtaining visas to visit the West. Minutes later, in reply to an Italian journalist, he seems to say that East Germans can go to the West with no restrictions, starting right now. Immediately, thousands of East Germans head to the Wall, some of them dressed in their pajamas. For three hours the crowd swells in front of the hated Wall. They refuse to move, and they chant, “Open the gate! Open the gate!” The guards, unsure what to do, decide to open the gates. Hundreds of thousands of East Berliners swarm through into the welcoming arms of their West German brothers and sisters. The invincible Wall has fallen—without a shot being fired.
A few days later, I was lying on the floor, looking at the latest Newsweek with my 4-year-old daughter Karen. I showed her the famous picture from about 25 years earlier of the armed East German guard who himself successfully escaped from East Germany. Karen asked me why I was so excited about the Berlin Wall falling. I reached for words that a 4-year old could understand.
I said, “These men were told to kill anyone who tried to get from East Berlin to West Berlin.”
“How rude!”she said. [This is the inserted part.]
“And some other men had suddenly decided that they were no longer going to shoot people; they were going to let them leave. This meant that these people who before were trapped where they lived now were not trapped. They could get out and go places they’d always wanted to go.”
“Like Disneyland?” said Karen.
“That’s right,” I answered. “Not only can they go where they want, but also they can buy things they have always wanted to buy.”
And my daughter, grinning, said, “Like candy?”
“Yes,” I said, “like candy.” I later learned that that weekend, the candy stores in West Berlin actually were sold out.
My daughter had understood the essence of XXX.
柏林墙于1961年8月13日开始修建，东德政府将其称之为“反法西斯防卫墙”，西德政府则认为这是限制行动自由的“耻辱之墙”。35年前，也就是1989年11月9日，历史上最著名的事件在西欧发生——柏林墙倒塌了。
中间省略4000字……
浩浩荡荡的20世纪过去了，人类历史上最著名的社会实验因为中央计划的崩溃而告一段落，我们可以从中得到很多东西，比如开放的市场社会会给每个人带来收入的提升，同时带来更多的自由，还有就是我们必须谨记：通往地狱的道路，很多时候是由善意铺就的。
墙永远也不会消失，但人们总是在拆墙，人们从墙穿过的方向就是文明的方向。
