Our evolved psychology is the foundation of all culture, not the other way around.

In grain trading, transparency builds trust that lasts longer than any single harvest.

写作是一种思考方式，而不仅仅是思想的记录。

所以，国家的钱财不足以来应付饥荒，救济孤儿寡妇，这样，国家就贫困，百姓就难于治理。