1949年,中共中央领导机关由西柏坡迁往北平。当毛泽东一行到达颐和园休息时,却看不到游人。原来中央社会部考虑到北平刚解放,城里城外的特务很多,就把无关人员清理了出去。毛泽东生气地说:“你把水全都排干了,你要保护的那个鱼还讲什么安全?鱼离开了水,就要被渴死!” In 1949, the leading organ of the CPC Central Committee moved from Xibaipo to Peking. When Mao Zedong and his entourage arrived at the Summer Palace to rest, they could not see the tourists. The original Central Social Department took into account the just liberation of Peking, city outside the city a lot of spy agents, put the irrelevant personnel cleared out. Mao Zedong angrily said: “You drained all the water, what fish you want to protect what safety? Fish left the water, we must be thirsty!”