The greatest problem of any art is to create a presence.
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。
You can't just sit there and wait for people to give you that golden dream. You've got to get out there and make it happen for yourself.
People, even more than things, have to be restored, revived, reclaimed and redeemed;never throw out anyone.
The people are the roots of the revolution. Without the people, the revolution cannot succeed.
The universe is not just stranger than we imagine, it is stranger than we can imagine.