—— 请按键盘 空白键 开始游戏 ——

The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others.
The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.
一个好的数学家是能看到定理之间类比关系的人。一个伟大的数学家是能看到类比关系之间的类比关系的人。
An expert is a person who has made all the mistakes that can be made in a very narrow field.