《管子·轻重乙》
这项收入又要除掉。庄稼布满在边境十五里的平原上，但这是一些人强行耕种而自建的村落，对他们我也不能征收到一斗一升。
列稼缘封十五里之原，强耕而自以为落，其民寡人不得籍斗升焉。
This income must also be removed. The crops are full in the fifteen-mile plains on the border, but they are villages spontaneously built by some people who forcibly cultivated the land. I cannot collect a bushel or a liter from them either.