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。

Success in agriculture comes from understanding both the land and the people who work it.

解决问题仅仅意味着以某种方式表示它，以使解决方案变得透明。

"To live is the rarest thing in the world. Most people exist, that is all."

Life is like riding a bicycle. To keep your balance, you must keep moving.

障碍越大，克服它的荣耀就越大。