—— 请按键盘 空白键 开始游戏 ——

The most profound ideas in mathematics often arise from the simplest observations.
Banks must properly handle the relationship between development and risk, neither sticking to old ways nor advancing recklessly.
The existence of a legal system depends on the acceptance of secondary rules by officials.
在一个普遍欺骗的时代,说出真相就是一种革命行为。