[...] the prognosis for the day the Wall came tumbling down was that the Germans would discover they differed more than they agreed. After forty years of living under such unequal conditions, it seemed likely that they would feel things other than tenderness for each other: lack of understanding, prejudice, envy, even hatred. Tearing down the Wall wouldn't remove it. For it was the Wall alone that preserved the illusion that the Wall was the only thing separating the Germans.