—— 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 key to solving global hunger is not just increasing yield, but improving nutritional quality.
The goal of behavior is always the reduction of some drive or need.
The best criticism of art is more art.
Knowledge is the source of power.
Mathematics is not just a collection of abstract concepts, but a language that allows us to understand the universe.