"Loneliness is not lack of company, loneliness is lack of purpose."
资本资产定价模型并非旨在成为资本市场的实证均衡理论，而是一种规范性理论，描述如果投资者以某种方式行事，价格应如何表现。
对智者来说，世界是喜剧；对愚者来说，世界是悲剧。
The beauty of science lies in its ability to surprise us.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The walls of a garden should be high enough to keep the world out, but low enough to let the sky in.
花园的墙应该足够高以将世界挡在外面，但又足够低以让天空进来。