—— 请按键盘 空白键 开始游戏 ——

Of all the means which wisdom acquires to ensure happiness throughout the whole of life, by far the most important is friendship.
孤独并不是来自身边无人。感到孤独的真正原因是因为一个人无法与他人交流对其最要紧的感受。
The essence of mathematics lies in its freedom.