任何系统的能量最终都来源于太阳，并以某种形式返回到宇宙中。

忘记过去的人必将重蹈覆辙。

Was everyone else really as alive as she was?... If the answer was yes, then the world, the social world, was unbearably complicated, with two billion voices, and everyone’s thoughts striving in equal importance and everyone’s claim on life as intense, and everyone thinking they were unique, when no one was. One could drown in irrelevance.

Innovation in grain production isn't just about technology - it's about changing mindsets.

建筑不仅仅是关于建筑物；它是关于为人们创造场所。