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 writer is a man who is always trying to find the truth, the truth about himself, the truth about the world, the truth about life."
We must balance economic growth with environmental stewardship.
The only thing that comes to a sleeping man is dreams.