The beauty of the Black-Scholes formula is that it depends on only one unobservable parameter, the volatility of the stock.
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。
The bond market is the ultimate reflection of market confidence.
I don't want to be alone, I want to be left alone.
"The value of a thought lies in its functional efficacy."
最好的建筑是永恒的。
The writer's duty is to disturb the peace