我们所谓的不干预孩子的学习尊重孩子的行动、必须在孩子本质上的发展于成熟之后才得以实行。
理解布莱克-斯科尔斯模型的关键在于认识到它是基于对冲以消除风险的理念。
The greatest tool we have is the power of our minds.
用程序证明四色定理不会改变数学——它只是证明了这个挑战了一个世纪的定理是一个有限的问题。
Every artist dips his brush in his own soul, and paints his own nature into his pictures.