“In a very real sense, every subsidy and privilege … is a form of slavery. Slavery, simply put, is the use of coercion to live off of someone else's labor. For example, consider the worker who pays $300 a month for a drug under patent, that would cost $30 in a free market. If he is paid $15 an hour, the eighteen hours he works every month to pay the difference are slavery. Every hour worked to pay usury on a credit card or mortgage is slavery. The hours worked to pay unnecessary distribution and marketing costs (comprising half of retail prices), because of subsidies to economic centralization, is slavery. Every additional hour someone works to meet his basic needs, because the state tilts the field in favor of the bosses and forces him to sell his labor for less than it is worth, is slavery. All these forms of slavery together probably amount to half our working hours. If we kept the full value of our labor, we could probably maintain current levels of consumption with a work week of twenty hours. As Bill Haywood said, for every man who gets a dollar he didn't sweat for, someone else sweated to produce a dollar he never received.”

Source: The House that Jack Built (2001), Chapter 1 (p. 14)

Twitter Post https://twitter.com/thehill/status/1134631705153802241, (31 May 2019)
2019, Twitter Quotes (2019), May 2019

Address delivered on 11th February 1921 at a meeting held in Maulana Mazhar-ul-Haq’s compound at Patna. Source: Collected Works of Deshbandhu.
1921

Source: Let Me Live (1937), p. 8

Cambridge 1995, p. 108
The Ego and Its Own (1844)

1930s, Die verfluchten Hakenkreuzler. Etwas zum Nachdenken (1932)

Explaining to reporters why it's the players who should pay the fans, and not vice versa; at post-game press conference on Roberto Clemente Day, as quoted in "Roberto Clemente's a Man of 2 Lives ... and 2 Loves" https://news.google.com/newspapers?id=zbYcAAAAIBAJ&sjid=NWYEAAAAIBAJ&pg=2327%2C2876682 by the Associated Press, in The Sarasota Herald-Tribune (July 26, 1970)
Other, <big><big>1970s</big></big>, <big>1970</big>

2012, Remarks at Clinton Global Initiative (September 2012)
Context: Now, I do not use that word, "slavery" lightly. It evokes obviously one of the most painful chapters in our nation’s history. But around the world, there’s no denying the awful reality. When a man, desperate for work, finds himself in a factory or on a fishing boat or in a field, working, toiling, for little or no pay, and beaten if he tries to escape -- that is slavery. When a woman is locked in a sweatshop, or trapped in a home as a domestic servant, alone and abused and incapable of leaving -- that’s slavery. When a little boy is kidnapped, turned into a child soldier, forced to kill or be killed -- that’s slavery. When a little girl is sold by her impoverished family -- girls my daughters’ age -- runs away from home, or is lured by the false promises of a better life, and then imprisoned in a brothel and tortured if she resists -- that’s slavery. It is barbaric, and it is evil, and it has no place in a civilized world.

Full quote: In today's world, time is the most expensive part of an expedition. Man hours spent in the archives can cut hundreds of thousands of dollars worth of time from the field phase of most projects.
from 'About the Author' by Charles King, Treasures of the Confederate Coast: the 'Real Rhett Butler' & Other Revelations by Dr. E. Lee Spence (Narwhal Press, Charleston/Miami, 1995), p. 517.