Sustainability isn't just about planting trees—it's about planting the right trees in the right places for the right reasons.
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。
The best way to overcome fear is to face it.
通过冥想来探索内心的世界。
An individual has not started living until he can rise above the narrow confines of his individualistic concerns to the broader concerns of all humanity.
The most important tool in survival is not a knife or a fire starter. It’s your will to live.
有时候你最害怕做的事情恰恰是能让你获得自由的事情。