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。
I'm not a role model, I'm a role model for people who don't believe in role models.
The competitor to be feared is one who never bothers about you at all, but goes on making his own business better all the time.
Progress requires both courage and humility.