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。
直到某些意外事件从外部触发,人们才会突然意识到真相。
"The key to successful verification is to start with a clear and precise specification of what the system is supposed to do."
如果你觉得失去了一切,请记住,树木每年都会落叶,但它们依然挺立,等待更好的日子。