The key to understanding the Black-Scholes model is to recognize that it is based on the idea of hedging to eliminate risk.
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。
不要问国家可以为你做什么,你应该要问自己可以为国家做什么。
Let's go invent tomorrow instead of worrying about what happened yesterday.
自由是上帝赐予的权利。
When one is in love, one always begins by deceiving one's self, and one always ends by deceiving others. That is what would calls a romance.