—— 请按键盘 空白键 开始游戏 ——

The AdS/CFT correspondence is a profound insight into the nature of reality, bridging the gap between quantum mechanics and general relativity.
"The future is about creating opportunities for all."
"A book is a fragile creature, it suffers the wear of time, it fears rodents, the elements and clumsy hands. So the librarian protects the books not only against mankind but also against nature and devotes his life to this war with the forces of oblivion."
The poor don’t fail to save because they don’t want to—they can’t.