“The rise of industrial capitalism thus rested on the maintenance of slavery in another part of the world, even though that slavery was no longer dependent on the continuation of the slave trade.”
Source: Europe and the People Without History, 1982, Chapter 11, The Movement of Commodities, p. 316.
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Eric Wolf 24
American anthropologist 1923–1999Related quotes
Both American and British abolitionists assumed that an end to slave imports would lead automatically to the amelioration and gradual abolition of slavery.
The Problem of Slavery in the Age of Revolution, 1770-1823, page 129. https://books.google.com/books?id=9lsvDwAAQBAJ&pg=PA129

Documentary films, America: Imagine the World Without Her (2014)
Source: How Europe Underdeveloped Africa (1972), p. 136.

Inaugural address (1889)
Context: Shall the prejudices and paralysis of slavery continue to hang upon the skirts of progress? How long will those who rejoice that slavery no longer exists cherish or tolerate the incapacities it put upon their communities? I look hopefully to the continuance of our protective system and to the consequent development of manufacturing and mining enterprises in the States hitherto wholly given to agriculture as a potent influence in the perfect unification of our people. The men who have invested their capital in these enterprises, the farmers who have felt the benefit of their neighborhood, and the men who work in shop or field will not fail to find and to defend a community of interest.

“Capitalism is but the gentleman's method of slavery”
Quoted in The Jewel of Africa, Vol. 1 (1968), p. 22.
Context: Capitalism is a development by refinement from feudalism just as feudalism is a development by refinement from slavery. Capitalism is but the gentleman's method of slavery.

Source: Sociology For The South: Or The Failure Of A Free Society (1854), p. 27-28

Source: Books, America: Imagine a World without Her (2014), Ch. 1

1870s, Fourth State of the Union Address (1872)

“Intellectual darkness is essential to industrial slavery.”
The Socialist Party and the Working Class (1904)
Context: Ignorance alone stands in the way of socialist success. The capitalist parties understand this and use their resources to prevent the workers from seeing the light.
Intellectual darkness is essential to industrial slavery.