The teacher's task is to awaken joy in creative expression and knowledge.
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。
"Experience is simply the name we give our mistakes."
虚心和实腹的义理都很深奥,但首先要通过虚心才能认识本心。