told a story of an incident that happened shortly after he lost his leg to cancer at age 12, when his father helped him up an icy, snow-covered hill,telling him "There is nothing that you cannot do."

VOA: standard.2009.08.29

2% You could say, I think my portfolio has an expected return of 12%-- that would be better than if it had an expected return of 10%.

如果一个投资组合的预期收益率有-,那就比一个只有10%的投资组合要好。

耶鲁公开课 - 金融市场课程节选