《管子·八观》
再遇上水旱灾害，老百姓就将离散而不肯回来。人民无力保卫国土，城防就不巩固；人民处于饥饿状态，就不能从事战争；人民离散而不回，国家就成为一片废墟了。
以此遇水旱，则众散而不收；彼民不足以守者，其城不固。民饥者不可以使战。众散而不收，则国为丘墟。
In the event of droughts or floods, people will scatter and refuse to return. As people are not able to protect their land, city defense will not be strong; as people are hungry, they will not be able to fight in wars; as people scatter and do not return, the country will become desolate.