美国人口中最富有的百分之一，却拥有美国百分之四十以上的财富——这还不包括自置居所——这一点，大量的社会历史已有记载。
America's richest one percent of the population own over forty percent of America's wealth-exclusive of home ownership-in this, the most opulent society history has ever known.
他还说，美国人尽管在历史上也曾以务农为本，但体会不到人口稠密的压力。
He went on to say that although the Americans were mostly farmers in the past, they never felt such pressure of population density.
美国人口普查局，《美国历史统计：自殖民时期至1970年》；
U. S. Bureau of the Census. Historical Statistics of the United States, Colonial Times to 1970.
美国人口普查局，《美国历史统计：自殖民时期至1970年》；
U. S. Bureau of the Census. Historical Statistics of the United States, Colonial Times to 1970.
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