The beauty of the Black-Scholes model is that it reduces the problem of pricing an option to estimating a few key parameters, most notably volatility.
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。
I always tell my kids if you lay down, people will step over you. But if you keep scrambling, if you keep going, someone will always, always help you.
The more I live, the more I regret how little I know.