Henry George,
Progress and Poverty (George)…
(1879)
“ Nor will capital invested in a woollen factory yield to the capitalist the difference between the produce of the factory and what the same amount of labour could have obtained with the spinning-wheel and handloom. Capital is produced by labour; it is, in fact, but labour impressed upon matter - labour stored up in matter, to be released again as needed, as the heat of the sun stored up in coal is released in the furnace. The use of capital in production is, therefore, but a mode of labour. As capital can be used only by being consumed, its use is the expenditure of labour ”
