—— 请按键盘 空白键 开始游戏 ——

I keep challenging myself because I don't want to repeat.
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
译文:老天爷的心思猜不透,但做人的道理容易守住。
You can't run a business, or anything, on a theory.
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.