The world loved man when he smiled. The world became afraid of him when he laughed.

History is not the past. It is the present. We carry our history with us. We are our history.

要理解递归，首先必须理解递归。

文学的职责是扰乱、质疑、动摇确定性。

世界变化非常快。大不再能打败小。而是快打败慢。