"But the rise of capitalism also depended on something else. It needed labour. Lots of it, and cheap. solved this problem too. With subsistence economies destroyed and commons fenced off, people had no choice but to sell their labour for wages - not to earn a bit of extra income, as under the previous regime, nor to satisfy the demands of a lord, as under serfdom, but simply in order to survive. They became, in a word, proletarians."