布萊克-斯科爾斯模型的美妙之處在于它將期權(quán)定價問題簡化為幾個可觀察的變量。
Love is the only thing that makes life bearable, but it is also the source of our greatest pain.
The nose of a mob is its imagination. By this, at any time, it can be quietly led.
依靠聰明、平衡的人類幾個世紀(jì)以來所依賴的普通美德。常識、節(jié)儉、現(xiàn)實的期望、耐心和毅力。
The secret to living is giving.
"To be a spy is to live in a world of constant doubt and suspicion."