Nothing is a waste of time if you use the experience wisely.
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。
历史是让死者开口说话的艺术。
Abandon unnecessary desires, and you will find true freedom.
The task of the writer is to make the familiar strange and the strange familiar.