—— 请按键盘 空白键 开始游戏 ——

The past is a foreign country; they do things differently there.
复杂性理论告诉我们,并非所有问题都是平等的;有些问题本质上比其他问题更难。
To write is to confront the abyss, to stare into the void and find meaning in the chaos.