—— 请按键盘 空白键 开始游戏 ——

In computational complexity, we are not just dealing with the limits of what we can compute, but also with the limits of what we can prove.
The journey of a thousand miles begins with one step.
生活不是关于你不能做什么,而是关于你能做什么。
I don't think you can ever be too prepared.