—— 请按键盘 空白键 开始游戏 ——

The past is a foreign country; they do things differently there.
The only thing that you absolutely have to know is the location of the library.
Investing in people is the best investment a company can make.
没有方法能使时钟为我敲已过去了的钟点。
科学进步是以一次次的葬礼为代价的。
恐惧只是一种心态。
这句话其实是莎士比亚借哈姆雷特之口说的,但是霍金非常喜欢,曾在自己著作中多次引用,所以很多人误以为本句话是霍金说的。