最成功的领导者是那些足够谦逊,知道自己并非无所不知的人。
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几个可观察的变量。
You think your pain and your heartbreak are unprecedented in the history of the world, but then you read.
The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.