《管子·山至数》
如今，钱币虽然贮藏在官府，但巧法使用货币和操纵物价的都是商人。市场上凡币值上升则物价下降，币值下降则物价上升，粮价上升金价下降。
今刀布藏于官府，巧币、万物轻重皆在贾人，彼币重而万物轻，币轻而万物重，彼谷重而。
Today, although currency is stored in government offices, it is the merchants who are skilled at using currency and manipulating prices. In the market, whenever the value of currency increases, prices decrease, and whenever the value of currency decreases, prices increase, and the price of grain rises while the price of gold falls.