The Morningstar study is incredibly damning in terms of the market timing abilities of individual investors.

晨星公司这一研究结果,谴责了个体投资者的市场时机选择能力

耶鲁公开课 - 金融市场课程节选

The returns would be attributable solely to my ability to market time the bond futures market.

回报率仅仅取决于,我选择买卖期货的市场时机的能力

耶鲁公开课 - 金融市场课程节选