—— 请按键盘 空白键 开始游戏 ——

The essence of mathematics lies in its freedom.
除非我能看到明确的50%收益路径,否则我从不购买任何东西。
The only way to keep the small folk loyal is to make sure they fear you more than they fear your enemies. 
The best time to plant a tree was 20 years ago. The second-best time is now.
华德福方法的核心是教育是一门艺术——它必须与孩子的经验对话。要教育整个孩子,必须触及他的心灵和意志,以及头脑。