—— 请按键盘 空白键 开始游戏 ——

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
技术应该为人类服务,而不是反过来。
大脑是一个复杂的系统,我们才刚刚开始理解它是如何工作的。
We must balance economic growth with environmental stewardship.