The general principle of portfolio management is: you want to include as many assets as you can.

投资组合管理总的原则是：,不同的资产越多则组合越佳。

耶鲁公开课 - 金融市场课程节选

Portfolio management pools risks in a different way: by assembling a diversified portfolio or a portfolio that's negatively correlated with a risk that someone has.

而投资组合管理采用了不同的方式,多元化的资产配置,或者风险负相关性的,投资组合

耶鲁公开课 - 金融市场课程节选

Finally, I just want to say, next lecture is January twenty-eighth and we're going to talk about portfolio diversification, which is one very important application of the fundamental principle of risk management, as applied to securities.

最后，我想说下一讲是在1月28日,到时我们会谈谈资产组合多样化，这是风险管理基本原则中,对证券投资来说，这是非常重要的一项应用。

耶鲁公开课 - 金融市场课程节选