—— 请按键盘 空白键 开始游戏 ——

Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.
Sustainability isn’t a trend; it’s our responsibility to the next generation.
"The stories we tell about others are often the stories we tell about ourselves."
恐惧可以是一个有用的信号,但它不应该是我们唯一倾听的声音。
Mathematics is a collaborative endeavor. No one does it alone.