So you say, how can I make money beating the market if every quarter I have to tell everybody what I'm doing?

因此你会说,如果我按季度公布所有的投资活动,那我还怎么跑赢市场赚取利润

耶鲁公开课 - 金融市场课程节选

And if I'm the tax collector, the way I make a profit is by charging you a lot more than I need just to send to Rome.

如果我是税吏，就会收你们一大笔钱,远多于需要上缴的数目，以赚取利润。

耶鲁公开课 - 新约课程节选

The dealer will charge a higher price for you to buy the furniture than will give to you to purchase the furniture from you; that's how the dealer makes a difference.

中间商给你的报价,会比向你收购同样家具的开价高,这就是中间商如何赚取差价

耶鲁公开课 - 金融市场课程节选