Money is the just medium and measure of commutable things.

Explanation

Money provides the neutral standard by which unlike goods and services can be compared and exchanged — it is the common denominator of commerce.

Where this applies

• Money is supposed to be a fair and neutral standard of exchange.
• The value of goods and services is measured through money as a common standard.
• Money serves as the just medium for comparing and exchanging unlike things.

See also

• 12.12.4 Goods are worth as much as they can be sold for.
• 12.12.6 It is inequitable to permit some to trade, and to prohibit others.