His main contention is that there is a vital distinction between domestic economy, whether of householder (οἰκονόμος) or statesman, and the art of acquisition or finance, as usually pursued. The primary function of the art of finance is to provide, while that of domestic economy is to use what is provided.[742] There are, however, many methods of acquisition (κτητική; χρηματιστική), some of which truly belong to the sphere of domestic economy.[743] The provision of all that is furnished by nature herself, as necessary to human existence, then, if not already at hand (ὑπάρχειν), belongs properly to domestic economy.[744] It both uses and provides genuine wealth, such as is limited in amount (οὐκ ἄπειρος) yet sufficient for independence (αὐτάρκεια) and the good life.[745] But the use of such wealth is its chief business.[746] The other kind of acquisition, which is unlimited, or chrematistik, is contrary to nature, and is not in the province of domestic economy.[747] This unnatural finance, since it deals chiefly in the exchange of money and other commodities, may be termed retail trade (καπηλική).[748] Though itself false, it is a logical outgrowth (κατὰ λόγον) of the true form of exchange that is limited to actual needs[749] as a result of the invention of money.[750] But the real reason for its pursuit is to satisfy an evil and unlimited desire for material things.[751] It produces money merely through the exchange of money (δι1α χρημάτων μεταβολῆς),[##] and its beginning and end is unlimited currency.[752] This false form of acquisition is often confused with necessary exchange, because both deal with money.[753] Their aims, however, are quite diverse. The latter treats the accumulation of money (αὔξησις) as a means, while the former treats it as the supreme end of life.[754] In fine, then, Aristotle teaches that necessary chrematistik has to do with the supply and use of life’s necessities, is natural (κατὰ φύσιν or οἰκειοτάτη) and limited,[755] its prime function being the proper disposal of products.[756] It is an honorable pursuit,[757] dependent chiefly upon fruits and animals,[758] and involves a practical knowledge of stock (κτηνή), farming, bee-culture, trees, fish, and fowl.[759] The false finance, on the other hand, is unnatural, dishonorable, and enriches at the expense of another.[760] Its chief business is commerce (ἐμπορία), including sea-trade (ναυκληρία), inland trade (φορτηγία), and shop-trade, (παράστασις).[761] It also comprises usury (τοκισμός) and hired labor, both skilled and unskilled (μισθαρνία ἡ μὲν τῶν βαναύσων τέχνων ἡ δὲ ἀτεχνῶν).[762]