Class is not a fixed designation in this country. We are an upwardly mobile society with a lot of movement between income groups.

Class is not a fixed designation in this country. We are an upwardly mobile society with a lot of movement between income groups.

阶级在这个国家不是固定的名称。我们是一个向上流动的社会，收入群体之间有很多流动。

-- Paul Ryan 保罗·瑞安