The Athenian Constitution · Aristotle
Part 7
The son of Diphilus, Athenion hight, Raised from the Thetes and become a knight, Did to the gods this sculptured charger bring, For his promotion a thank-offering. And a horse stands in evidence beside the man, implying that this was what was meant by belonging to the rank of Knight. At the same time it seems reasonable to suppose that this class, like the Pentacosiomedimni, was defined by the possession of an income of a certain number of measures. Those ranked as Zeugitae who made two hundred measures, liquid or solid; and the rest ranked as Thetes, and were not eligible for any office. Hence it is that even at the present day, when a candidate for any office is asked to what class he belongs, no one would think of saying that he belonged to the Thetes.
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