—— 请按键盘 空白键 开始游戏 ——

Success is not final, failure is not fatal: it is the courage to continue that counts.
可持续性不是一种风格,而是一种责任。
"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."
数学的美妙之处在于它常常引导我们发现关于物理世界的真理,而这些真理是我们无法通过其他方式发现的。