养猪是个技术活，不是谁都能养好的。

Science is a journey of continuous learning and adaptation.

We are all exiles in one way or another.

We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

过去并非单一叙事，而是相互关联的故事网络。

量子场论是粒子物理学定律的表述语言。