No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.

中心地的空间分布遵循基于经济原则的系统模式。

言语有力量——明智地使用它们。

If you don’t drive your business, you will be driven out of business.

宁可信他有，不可信他没有。