We are now in a good place to see once for all the sharp distinction there is between Utility and Value. These two are often confounded to the deep detriment of our Science; and no clear thinking is possible in Economics without drawing this line sharp, and then holding it fast; for the hazard of this confusion is all the greater, because Utility is always connected with Value, although it is a totally different thing from Value. We will see. Utility is the simple capacity of anything to gratify the desire of anybody. This is at once the etymological as well as the popular signification of the word. It is derived from the Latin _utor_, to make use of, a word that is often conjoined in Latin with _fruor_, to enjoy; so much so, that the two verbs are often put together, _utor et fruor_, and also often without the conjunctive, _utor fruor_. Utility, then, is a quality of innumerable things. Anything that is _good for_ anything, anything _useful_, anything that has the power to still _the desires_ of any person, has Utility. But multitudes of things that have this capacity to gratify human desires are never bought and sold, and therefore can have no Value, since nobody will give anything for them. The air we breathe, the water we refresh ourselves with from spring or brook, the light of the sun and moon and stars, the fragrance of the flowers, the mountain prospect that delights the eye,--all these, and thousands more, possess the highest utility, but no value whatsoever. They are free. They are the bounty of God. They are never bought and sold. They are a vast class of things by themselves, with which Political Economy as such has nothing to do.