#59 Lo dijo por ejemplo aquí:
But the English bourgeoisie has also much more important interests in the present economy of Ireland. Owing to the constantly increasing concentration of leaseholds, Ireland constantly sends her own surplus to the English labour market, and thus forces down wages and lowers the material and moral position of the English working class.
https://www.marxists.org/archive/marx/works/1870/letters/70_04_09.htm