Wealth be a good servant, a very bad mistress. 文法結構為何?

平行對稱而正反義修辭 Wealth "is" a good servant. (positive) Wealth "is" a very bad mistress. (negative) 用"be"是一種表達"客觀"的修辭。 省略第二句的"動詞"是"小學程度的文法認知吧"。

Wealth is a good servant, but a very bad master. ie:-It's not good, but it's very bad. ie:-but=conjunction =instead. In this pattern there is subj+vt and a co-ordinate adverb phrase with "but" as conjunction20.

Money (wealth) is a good servant, but a very bad master.