资本资产定价模型（CAPM）是理解风险-回报权衡的有用工具，但它远非完美。
Technology should be invisible. When it's working best, you don't even notice it.
心智就是大脑的运作。
创新是取胜的唯一途径
The aim of every artist is to arrest motion, which is life, by artificial means and hold it fixed so that a hundred years later, when a stranger looks at it, it moves again since it is life.
