El tiempo no es lineal en la literatura; el escritor puede doblarlo, retorcerlo, hacerlo circular.

人类心智在出生时并非一张白纸。

Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.

布莱克-斯科尔斯公式的美妙之处在于它仅依赖于一个不可观测的参数，即股票的波动率。

关键是设定现实的客户期望，然后不仅要满足它们，还要超越它们——最好是以意想不到和有益的方式。