Abstemius's Fables (Sir Roger L'Estrange)
282. (Abstemius 30) A Rich Man and a Foolish Servant.
A Rich Man had a certain block-headed Fellow to his Servant, and the Master would be saying to him at every turn, Well! Thou art the very Prince of Fools! I would I were, says the Man, in a fawcy Huff once, for I would be the greatest Emperor upon the Face of the Earth then, and You yourself should be One of my Subjects.
The Only Universal Monarch is the King of Fools; for the whole Race of Mankind are his Subjects.
Fables of Aesop and Other Eminent Mythologists: Abstemius's Fables by Sir Roger L'Estrange. Available online at Google Books.