For further illustration of Value and Utility thus defined, nothing has greater Utility--greater “total” Utility, if that professorial term be preferred--than the sun; but the sun has no Value except as its Utility is controlled by ownership of Land favorably situated with reference to it; for it cannot be exchanged in Trade for anything else. Nor has it Price, for Money cannot buy it. Though it may be bought and sold to some degree indirectly through the buying and selling of Land which controls the sun’s utility to that degree, this value is not sun-value but Land Value. Yet all commodities--whether in the Wealth class, as a house or food; or the Land class, as a natural building-site, or an ore deposit, or soil fertility, or the sun to the degree that its light and heat are owned through ownership of Land--have Utility, Value and Price. The last of the three is expressed in terms of Money. Money is the common medium of Trade. Where and when Money is in use, he who wishes to trade a hat for shoes need not hunt for somebody who has shoes but wants a hat instead; all he need do is first to find some one who has shoes and wants Money. And since persons who want Money (which as a common medium of Trade is in effect everything in the channels of Trade) are so many in comparison with those who at a given time want shoes, Money infinitely diminishes the difficulties of trading commodities. Money is also a common denominator of Value, as we have already observed. Without it each of us would be obliged to express the Value of each exchangeable object in the complicated terms of all other exchangeable objects. We should have to say, for example, that a hat has the Value of a pair of shoes or of a chair or of an umbrella and so on; that a pair of shoes has the Value of a hat or of a chair or of an umbrella, and so on; that a chair has the Value of an umbrella or of a pair of shoes or of a hat and so on; and that an umbrella has the Value of a hat or a pair of shoes or of a chair and so on. And then we should have to complicate the comparisons with specifications of quality. But Money terms obviate the necessity for such vague and multifarious Value comparisons as are here merely hinted at. They enable us to say that a hat, a pair of shoes, a chair, an umbrella are each of the Value of five dollars, or a pound sterling, or so many francs, according to the names and fidelity to financial standards of Money pieces in the places where we engage in Trade, and according also to the quality of the commodities specified. It should, however, be here repeated and emphasized, that Money pieces in whatever form, be it coin or scrip, are themselves of slight practical importance in the ramifications of Trade. Not tangible Money, but the Money terms which measure and express the relative Values of commodities--these play the great part.