计算机科学的挑战不仅在于创造新技术，还在于确保它们被道德和负责任地使用。

知道自己不知道的比聪明更有用。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

The past is never dead. It's not even past.

世界越是荒谬，就越有必要创造一种秩序感。

出处：《周易•系辞上》。