那下面发生的事情，跟他们说的完全不一样。

Failure is not scary; what's scary is losing the ability to learn from it.

A teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron.

理解布莱克-斯科尔斯模型的关键在于认识到它是基于对冲以消除风险的理念。