It's only Leviticus that mentions the poor. For Deuteronomy, it's those who really can't provide for themselves: the widow, the orphan and the stranger who may not be able to find employment.

提到穷人的只有《利未记》对《申命记》来说，却是那些真正没法供养自己的人，寡妇，孤儿，寄居的都是不能找到工作的人。

耶鲁公开课 - 旧约导论课程节选

If language can refer to just about everything from English to traffic signals, then we're not going to be able to find interesting generalizations or do good science about it.

如果语言能够表示一切,从英语到交通信号,那我们就无法得出各种有趣的概论,或是无法对语言进行科学的研究

耶鲁公开课 - 心理学导论课程节选