Jean-Jacques Rousseau’s Discourse on the Origin and the Foundation of Inequality Among Mankind, which he wrote in 1754. Once upon a time, the story goes, we were hunter-gatherers, living in a prolonged state of childlike innocence, in tiny bands. These bands were egalitarian; they could be for the very reason that they were so small. It was only after the ‘Agricultural Revolution’, and then still more the rise of cities, that this happy condition came to an end,
