布莱克-斯科尔斯模型的美妙之处在于它将期权定价问题简化为估计几个关键参数,尤其是波动率。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The most dangerous thing is not failure, but complacency.
要在法律之外生活,你必须诚实。
Darkness cannot drive out darkness; only light can do that.Hate cannot drive out hate; only love can do that.
Liberty cannot be preserved without a general knowledge among the people.