生活是一场海难,但我们不能忘记在救生艇上歌唱。
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几个可观察的变量。
Politics has no permanent friends or enemies, only interests.
In the face of uncertainty, the best strategy is to remain adaptable and open-minded.