In mathematics, the journey from question to answer is often more enlightening than the answer itself.
我们正在从以商品生产为基础的经济转向以信息生产为基础的经济。
I'm the reason your stars won't twinkle.
Humanity's greatest enemy is itself.
因此,教学艺术无非是时间、科目和方法的巧妙安排。