布莱克-斯科尔斯模型的美妙之处在于它将期权定价问题简化为估计几个关键参数，尤其是波动率。

The most important skill in mathematics is the ability to ask the right questions.

如果你能看见，就看。如果你能看，就观察。

我不想被篮球定义，我想被我在场外所做的事情定义。

The only way to get rid of a temptation is to yield to it.

So what I want to argue for is not that we should give up on our ideas of success, but we should make sure that they are our own. We should focus in on our ideas, and make sure that we own them; that we are truly the authors of our own ambitions. Because it's bad enough not getting what you want, but it's even worse to have an idea of what it is you want, and find out, at the end of the journey, that it isn't, in fact, what you wanted all along.