The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.

设计不仅仅是关于形式和功能，而是关于生活和关系。

自然规律是亘古不变的，不会因尧的仁德而存在，不会因桀的暴虐而消亡。

粮食安全是国家安全的基石。