—— 请按键盘 空白键 开始游戏 ——

The most enduring changes come from understanding the root causes of problems, not just their symptoms.
The greatest mistake you can make in life is to be continually fearing you will make one.
Those who dream by day are cognizant of many things which escape those who dream only by night.
可持续性不是一种趋势;而是我们对地球和未来农民的责任。
The best way to learn mathematics is to do mathematics.