书是你握在手中的梦。
A book is a dream that you hold in your hand.
驯服囚犯最管用的办法，就是让他相信自己是自由的。If you
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 only valid data for psychology are observable behaviors.
"I'm not perfect, but I'm trying every day to concentrate on being better."
Sustainability in mining isn't an option—it's a responsibility we owe to future generations.
每一次技术突破的背后，都是无数次失败的积累。