It seemed the world was divided into good and bad people. The good ones slept better ... while the bad ones seemed to enjoy the waking hours much more.

如果所有的人都是富有的，那么所有的人都是贫穷的。

The only real voyage of discovery consists not in seeking new landscapes, but in having new eyes.

高分子科学的进步依赖于理论与实验的结合。

经济景观是一个由不同等级的中心地组成的系统，每个中心地为特定区域服务。