中心地的空间分布遵循基于经济原则的系统模式。

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact.

True happiness comes from love for oneself and others.

可持续性应成为所有能源存储解决方案的核心。

文学让我们无需离开原地就能遨游其他世界。