Trust is good, control is better.
信任是好的，控制更好。
Money and success don't change people, they merely amplify what is already there.
真相很少是纯粹的，也从不简单。
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。