You have half of your assets in one single asset class: U.S. Common stocks.

你将半数资产,投资于单一类别,美国普通股

耶鲁公开课 - 金融市场课程节选

Slaves were the single largest, by far, financial asset of property in the entire American economy.

截止至今,在美国经济中,奴隶是最庞大的经济资产

耶鲁公开课 - 美国内战与重建课程节选