"Also connected with justice is a“natural” limit on exchange. Aristotle recognizes that households need to have at least some wealth and property to survive (Politics, 1256b, 9). But wealth can be pursued in two ways: One way is to get the things we need to live, and the other is to get money itself. The former is a necessary part of household management (Politics, 1257b, 19-20), but the latter has no natural limit (Politics, 1258a, 1); in the former case, men trade for what they need and cease when they have enough; there is no point in acquiring more bread then you can use. But the latter case has no limit; money can be accumulated without end. This second type of exchange came about only after the use of money replaced barter."
"Hence some persons are led to believe that getting wealth is the object of household management, and the whole idea of their lives is that they ought… to increase their money without limit. The origin of this disposition in men is that they are intent upon living only, and not upon living well: and, as their desires are unlimited, they also desire that the means of gratifying them should be without limit" (Politics, 1257b, 39)