National prosperity involves not only economic growth but also educational advancement and people's happiness.

prosperity 是名词，来自形容词 prosperous（繁荣的、兴旺的）。词根 prosper 表示"成功、繁荣"，后缀 -ity 表示抽象名词性质。prosperity 指"繁荣昌盛的状态"，特别指国家或社会的整体兴盛。