它们不是纪念碑，而是脚印。纪念碑只会说'至少我到了这里'，而脚印会说'这是我再次移动时所在的地方'。

To forget is to betray; to remember is to resist.

You should write, first of all, to please yourself. You shouldn't care a damn about anybody else at all.

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。