—— 请按键盘 空白键 开始游戏 ——

数学中最重要的是理解概念,而不仅仅是记忆公式。
The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.
人很容易被自己的利益驱使,仅仅让他看到正确是不够的,还必须让他感受到它。
The world is not a wish-granting factory.
Writing is the only thing I've ever done with persistence, except for being married.
I'm the reason your rain won't fall.
A good world needs knowledge, kindliness, and courage; it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men.
The dairy industry must adapt to changing consumer preferences.