Again, we may find the Sophist by descending through a different string of subordinate classes from the genus--_Acquisitive Art_. The professors of this latter may be bisected into two sorts--hunters and exchangers. Exchangers are of two sorts--givers and sellers. Sellers again sell either their own productions, or the productions of others. Those who sell the productions of others are either fixed residents in one city, or hawkers travelling about from city to city. Hawkers again carry about for sale either merchandise for the body, or merchandise for the mind, such as music, poetry, painting, exhibitions of jugglery, learning, and intellectual accomplishments, and so forth. These latter (hawkers for the mind) may be divided into two sorts: those who go about teaching; for money, arts and literary accomplishments--and those who go about teaching virtue for money. They who go about teaching virtue for money are the Sophists.[18] Or indeed if they sell virtue and knowledge for money, they are not the less Sophists--whether they buy what they sell from others, or prepare it for themselves--whether they remain in one city or become itinerant. [Footnote 18: Plato, Sophist. p. 224 B.] [Side-note: Also, by a third.] A third series of subordinate classes will also bring us down from the genus--_Acquisitive Art_--down to the _infima species_--_Sophist_. In determining the class-place of the angler, we recognised a bisection of acquisitive art into acquirers by exchange, or mutual consent--and acquirers by appropriation, or without consent.[19] These latter we divided according as they employed either force or stratagem: contenders and hunters. We then proceeded to bisect the class hunters, leaving the contenders without farther notice. Now let us take up the class contenders. It may be divided into two: competitors for a set prize (pecuniary or honorary), and fighters. The fighters go to work either body against body, violently--or tongue against tongue, as arguers. These arguers again fall into two classes: the pleaders, who make long speeches, about just or unjust, before the public assembly and dikastery: and the dialogists, who meet each other in short question and answer. The dialogists again are divided into two: the private, untrained antagonists, quarrelling with each other about the particular affairs of life (who form a species by themselves, since characteristic attributes may be assigned to them; though these attributes are too petty and too indefinite to have ever received a name in common language, or to deserve a name from us[20])--and the trained practitioners or wranglers, who dispute not about particular incidents, but about just and unjust in general, and other general matters.[21] Of wranglers again there are two sorts: the prosers, who follow the pursuit from spontaneous taste and attachment, not only without hope of gain, but to the detriment of their private affairs, incurring loss