Observance of customs and laws can very easily be a cloak for a lie so subtle that our fellow human beings are unable to detect it. It may help us to escape all criticism, we may even be able to deceive ourselves in the belief of our obvious righteousness. But deep down, below the surface of the average man's conscience, he hears a voice whispering, "There is something not right," no matter how much his rightness is supported by public opinion or by the moral code.
对习俗和法律的遵从很容易成为对谎言的掩饰，这种掩饰极为巧妙，令人无法察觉。它可以使我们逃避所有的批评，它甚至能够使我们欺骗自己，令我们相信自己是 显然正当的。但是无论他的正当性得到多少公众舆论或道德准则的支持，在内心深处、在普通人的意识层次之下，他仍听到一个低低的声音：“哪儿有点不正常”。
完美面包的秘诀？时间和关注。
自然法则不仅仅是被观察到的，而是观察者与被观察者之间相互作用的结果。
当且仅当所有投资者都持有均值-方差有效的投资组合时，市场组合才是有效的。