—— 请按键盘 空白键 开始游戏 ——

宁可信他有,不可信他没有。
In programming, everything we do is a special case of something more general -- and often we know it too quickly.
The beauty of mathematics is that it allows us to explore the universe without ever leaving our chairs.
The only way to find out anything about what kinds of books people would like to read is to publish books and see what happens.