“This to a tyrant master sold
His native land for cursed gold.”

Source: Aeneid (29–19 BC), Book VI, Line 621

Standup Comic (1999)

Song 5, "Praise for Birth and Education in a Christian Land", stanza 3. Cf. Psalms 119:72 (KJV): "The law of thy mouth is better unto me than thousands of gold and silver."
1710s, Divine Songs Attempted in the Easy Language of Children (1715)

The visit of King Albert I to the Belgian Congo in 1928. Between propaganda and reality. https://www.congoforum.be/Upldocs/Het_bezoek_van_koning_Albert_I_aan_Belgi.compressed.pdf In July 1933, in a noted speech to the Senate, Leopold made a plea for the development of paysannat or indigenous agriculture in then Belgian Congo.

The Works of Publius Virgilius Maro (2nd ed. 1654), Virgil's Æneis

Edgar Kaufmann conversation, letter to Edgar Kaufmann Jr, 1932, Wis.
About Martinez

August 22
Debates in the Federal Convention (1787)
Context: Every master of slaves is born a petty tyrant. They bring the judgment of heaven on a Country. As nations can not be rewarded or punished in the next world they must be in this. By an inevitable chain of causes & effects providence punishes national sins, by national calamities.

As quoted in [Robert Andrews, The New Penguin Dictionary of Modern Quotations, https://books.google.com/books?id=VK0vR4fsaigC&pg=PT657, 30 October 2003, Penguin Books Limited, 978-0-14-196531-4, 657]
The Individual, Society and the State (1940)

Epistle to Elizabeth, Countess of Rutland, lines 1-2. Comparable to "The flattering, mighty, nay, almighty gold", John Wolcot, To Kien Long, Ode iv; "Almighty dollar", Washington Irving, The Creole Village.
The Works of Ben Jonson, First Folio (1616), The Forest