—— 请按键盘 空白键 开始游戏 ——

The most beautiful things in life are free.
在任何情况下都要寻找积极的一面。
举一个例子尚且不明白,就不要追求见多识广。 
没有执行的愿景只是一个梦想。
Great leaders are willing to make the tough decisions that others avoid.
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.