Grocott & Ward, comps. Grocott’s Familiar Quotations, 6th ed. 189-?.

Servants

From kings to cobblers ’tis the same:
Bad servants wound their masters’ fame.
Gay.—The Squire and his Cur, Part II. Fable VI. Line 61.

The tongue is the vile servant’s vilest part.
Juvenal.—Sat. IX. (Gittna.)