—— 请按键盘 空白键 开始游戏 ——

The individual's biography is shaped by the historical and social context in which it is embedded.
保持冷静,但要关心。
"The world is indeed full of peril, and in it there are many dark places; but still there is much that is fair, and though in all lands love is now mingled with grief, it grows perhaps the greater."
A mathematician is a device for turning coffee into theorems.
在战争中,任何拖延都是危险的。