A book is a mirror: if an ass peers into it, you can't expect an apostle to look out.
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
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。
有些伤口永远不会愈合,只会结痂。
Lightness is not just physical, but also spiritual.
I don't mind being wrong, I just don't want to stay wrong.