—— 请按键盘 空白键 开始游戏 ——

The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
世界上最好和最美丽的东西是看不见甚至摸不到的——它们必须用心去感受。
The difference between a policy and a crusade is that a policy is judged by its results, while a crusade is judged by how good it makes its crusaders feel.
物理学和数学之间的界限并不像我们想象的那么清晰。