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。

Literature is the bridge between the visible and the invisible, the spoken and the unspoken.

The greatest reward is seeing people enjoy something I've created.

I think the most important thing is to be happy and to be kind to others.

对抗传染病的斗争是一项超越国界的全球性努力。

人生是美好的。