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BOOK I
Chapter 1. Every art and every inquiry, and likewise every action and choice, seems to aim at some good, and hence it has been beautifully said that the good is that at which all things aim. But a certain difference is apparent among ends, since some are ways of being at work, while others are certain kinds of works produced, over and above the being-at-work. And in those cases in which there are ends of any kind beyond the actions, the works produced are by nature better things than the activities. And since there are many actions and arts and kinds of knowledge, the ends also turn out to be many: of medical knowledge the end is health, of shipbuilding skill it is a boat, of strategic art it is victory, of household management it is wealth. But in as many such pursuits as are under some one capacity—in the way that bridle making and all the other skills involved with implements pertaining to horses come under horsemanship, while this and every action pertaining to war come under strategic art, and in the same way other pursuits are under other capacities—in all of them the ends of all the master arts are more worthy of choice than are the ends of the pursuits that come under them, since these latter are pursued for the sake of those arts. And it makes no difference whether the ends of the actions are the ways of being at work themselves, or something else beyond these, as they are with the kinds of knowledge mentioned.
