In order to explain these phenomena,we must refer to the progress which has been made in the course of the last thousand years in sciences and arts,domestic and public regulations,cultivation of the mind and capabilities of production.

• 要对这些现象作出解释，我们势必要提到近一千年以来在科学与艺术、国家与社会制度、智力培养、生产效能这些方面的进步。