对鱼与熊掌舍何取何的难题，既不可因其难而全舍，也不可畏其难而逐波，名城保护与现代化建设也如此。只有把长远利益和眼前利益结合起来，方为智者之举。但是，做到这一步，必须下功夫。总结半个世纪来北京城市建设的经验和教训，我们追求的目标既不是把北京旧城拆了全都建新 The question of what to take for the fish and the bear’s clan can neither be overtaken by its own difficulties nor can it be overwhelmed by its difficulties. The protection and modernization of the famous city are also like this. Only by combining long-term interests with immediate benefits is the wise move. However, to do this, we must work hard. Summing up the experiences and lessons learned from the urban construction in Beijing in the past half century, we neither pursue the goal of demolishing all the old cities in Beijing