《汉书·志·食货志上》
食是指农民生产的可以吃的好谷，货是指可穿的布帛，以及金刀龟贝，用来分配财产扩散利益以通有无。
食谓农殖嘉谷可食之物，货谓布帛可衣，及金、刀、鱼、贝，所以分财布利通有无者也。
Food refers to good grains that can be eaten if produced by farmers, and goods refer to wearable fabrics, as well as gold knives, turtles and shells, which are used to allocate property, spread interests, and communicate with each other.