Don’t tell me the moon is shining, show me the glint of light on broken glass.
All happy families are alike; each unhappy family is unhappy in its own way.
布莱克-斯科尔斯公式的美妙之处在于它仅依赖于一个不可观测的参数,即股票的波动率。
The best fertilizer is the farmer's shadow.
The human being is a most curious creature. He thinks he has a soul, but he is a soul; he has a body.