The true test of a society is how it treats its most vulnerable members.
The only way to discover the limits of the possible is to go beyond them into the impossible.
就像虎的外形好画,虎的骨骼难画一样,人的外表好认,人心却难了解。
理解布莱克-斯科尔斯模型的关键在于认识到它是基于创建无风险对冲的理念。
The goal is not to build more, but to build better.