理解布莱克-斯科尔斯模型的关键在于认识到它是基于风险中性世界的概念,在这个世界中投资者对风险漠不关心。
You can’t be brave if you’ve only had wonderful things happen to you.
The difference between a policy and a crusade is that a policy is judged by its results, while a crusade is judged by how good it makes its crusaders feel.
艺术让我得以生存。
I don't think you can ever stop learning as an actor.