现在是理解过去的钥匙。

我不担心人们说什么。我知道我能做什么。

The city is the collective memory of its people, and like memory it is associated with objects and places.

History is indeed little more than the register of the crimes, follies, and misfortunes of mankind.

人工智能的未来不是替代人类，而是增强人类的能力。

心理学的方法必须尽可能精确。