—— 请按键盘 空白键 开始游戏 ——

Philosophy is an ornament in prosperity, a refuge in adversity, and a provision in old age.
The art of progress is to preserve order amid change and to preserve change amid order.
"The magic of books is that they can take you anywhere."
When you work on hard problems long enough, you start to see connections where others see only confusion.
每个移民都携带着一个看不见的记忆行李箱。