The essence of investment management is the management of risks, not the management of returns.
If you don't believe in yourself, no one else will.
I'm not afraid to take a stand. Everybody come take my hand. We'll walk this road together, through the storm. Whatever weather, cold or warm. Just let you know that, you're not alone.
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。