"The prosperity of the Han dynasty, the disadvantages of the Qin dynasty, the husband joined the army, the old and weak, the homework and wealth, since the son of heaven can not have a good appetite, but will take the ox cart, no cover. Therefore, Qin money is difficult to use, so that the people can cast money, a catty of gold, and the law is forbidden. Mercenary criminals accumulate surplus business to collect things in the market, and things soar, from rice to 10 thousand yuan, a horse is 100 yuan. The king's yard was flat, but Gaozu ordered the Jia people not to travel in clothes and silk, and paid heavy taxes to embarrass them. Filial piety is the beginning of the world, and the business law is loose. However, the descendants of the market are not allowed to be kind. " (1) "Two years after high school (186 before), eight baht." (2) "When you are filial, the money is more beneficial and lighter" (3) "Five years ago (175), except for the money method, the people had to cast money." (4) "Cast more than four baht, the text is' half two', so that the people can cast their own money. Therefore, the warlord Wu also relied on the mountain to make money, became rich in the emperor, and later died in rebellion. Deng Tong, a doctor, is a coinage king. Therefore, the amount of money is distributed all over the world and it is forbidden to cast money. " (5)