The Challenge for the 1990's: "In a capitalist system of private ownership of land, when society continually progresses, land prices will continually increase because of supply and demand relations. But these windfall profits from rising land prices are easily skimmed off by the landowners.
「在資本主義土地私有的制度下，當社會不斷進步、土地價格會因供需關係而持續上漲，但這種因土地漲價所產生的暴利，卻被地主輕易取走。