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 most difficult thing in architecture is to be simple.
A great editor knows when to hold back and when to push forward.
对我们是什么的批评，同时是对强加于我们的限制的历史分析，也是对超越这些限制的可能性的实验。
Collaboration across disciplines is essential for solving complex scientific challenges.
If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."