科学的历史是新知识生产的历史。

一本书是作者和读者穿越时间的亲密对话。

The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

数据的好坏取决于我们提出的问题。

质量不是保证；它是一种证明。

最好的投资不是技术，而是能让技术发挥作用的人。