—— 请按键盘 空白键 开始游戏 ——

The circumstances of the world are continually changing, and the opinions of man change also; and as government is for the living, and not for the dead, it is the living only that has any right in it.
The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.
In the world of mathematics, imagination is more important than knowledge.
"Mental life is fundamentally adaptive."