—— 请按键盘 空白键 开始游戏 ——

The complexity of a learning problem is often determined by the size and structure of the hypothesis space.
A thriving forest is the ultimate measure of success.
"History is not just a record of the past, but a mirror reflecting the present."
不过是君主不把它[爱人利人]用在政事上,士大夫也不把它付诸行动罢了。