Without such a developmental and expansionist land system, the originally 13 small states cannot grow up into such a strong and powerful large world power.

• 如果没有这种开发和扩张性的土地制度，美国原本狭小的国土面积就无法扩大到现今如此广袤的程度，也就不会有美国现今在世界上这种独一无二的强国地位。