Respectfully Quoted: A Dictionary of Quotations. 1989.
John Heywood (1497?1580?)
Would yee both eat your cake, and have your cake?
JOHN HEYWOOD, The Proverbs of John Heywood, part 2, chapter 9, p. 162 (1598, reprinted 1874, 1978).
The idea that if you spend a thing you cannot have it goes back much further than Heywoods original 1546 work. Plautus wrote c. 194 B.C. in Trinummus (act II, scene iv, line 414), Non tibi illud apparere si sumas potest (if you spend a thing you cannot have it), translated as You cannot eat your cake and have it too by one Englishman.Comedies of Plautus, trans. Bonnell Thornton, 2d ed., rev., vol. 2, p. 29 (1769).