The capital asset pricing model (CAPM) is a useful tool for understanding the risk-return tradeoff, but it is not a perfect description of reality.
资本资产定价模型（CAPM）是理解风险-回报权衡的有用工具，但它并非对现实的完美描述。
The role of business is to produce products and services that make people's lives better—while using fewer resources—and to act lawfully and with integrity.
With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.
我希望，30年后你们还会再回到哈佛，想起你们用自己的天赋和能力所做出的一切。我希望，在那个时候，你们用来评价自己的标准，不仅仅是你们的专业成就，而包括你们为改变这个世界深刻的不平等所做出的努力，以及你们如何善待那些远隔千山万水、与你们毫不相干的人们，你们与他们唯一的共同点就是同为人类。
剪辑的节奏应该与观众的心跳相匹配。
Every life leaves behind a trail of evidence; the biographer is the detective who follows it.
A building should be a fragment of the city, not an isolated object.