Innovation is not an option, but a necessity for survival.

释义：如果早知道这个人会如此绊人心，那么当初就不应该认识他。

The hunger angel is a metaphor for the hunger that stalks you like a shadow.

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。