—— 请按键盘 空白键 开始游戏 ——

I don’t let mistakes discourage me, I let them educate me.
The PAC learning framework provides a formal way to quantify the learnability of a concept class.
The best way to get a project done faster is to start sooner.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
在计算机科学中,我们经常处理那些容易陈述但难以解决的问题。
The four most dangerous words in investing are: 'this time it's different.'
最好的投资是投人,而不是投项目。