The Boy and the Rainbow. Compare: "I have had my labour for my travail", William Shakespeare, Troilus and Cressida, Act i., Sc. 1.
Bartlett's Familiar Quotations, 10th ed. (1919)
“They can expect nothing but their labour for their pains.”
Don Quixote de la Mancha (1605–1615), Prologue
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Miguel de Cervantes 178
Spanish novelist, poet, and playwright 1547–1616Related quotes

“No statesman e'er will find it worth his pains
To tax our labours and excise our brains.”
Night, an Epistle to Robert Lloyd (1761), line 271

Grundrisse (1857-1858)
Source: Notebook IV, The Chapter on Capital, p. 308.

Message from the Queen, read by the British ambassador to Washington, Sir Christopher Meyer, St Thomas's Episcopal Church on Fifth Avenue. 22 September 2001. http://www.telegraph.co.uk/news/worldnews/northamerica/usa/1341155/Grief-is-price-of-love-says-the-Queen.html

“The labour of a menial servant, on the contrary, adds to the value of nothing.”
Source: The Wealth of Nations (1776), Book II, Chapter III, p. 364 (see Proverbs 14-23 KJV).
Context: Thus the labour of a manufacture adds, generally, to the value of the materials which he works upon, that of his own maintenance, and of his masters profits. The labour of a menial servant, on the contrary, adds to the value of nothing.

Letter circulated to various officials who wished to appoint Higgins to Parliament, 14 December 1832.