—— 请按键盘 空白键 开始游戏 ——

我们不相信通用的解决方案。每个问题都需要自己的答案。
数学不仅仅是一种工具;它是一种思维方式。
"Adventure is worthwhile in itself."
In peace, sons bury their fathers. In war, fathers bury their sons.
A great novel is a conversation between the author and the reader across time and space.