The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?

The primary function of law is to provide a framework for social order.

最先进的农业系统仍然依赖于最基本的要素：健康的土壤。

I have never known any distress that an hour's reading did not relieve.

没有大胆的猜想，就没有伟大的发现。