Discourse on the Origin and Basis of Inequality Among Men also commonly known as the "Second Discourse", is a 1755 work by philosopher Jean-Jacques Rousseau. Rousseau first exposes in this work his conception of a human state of nature, broadly believed to be a hypothetical thought exercise and of human perfectibility, an early idea of progress. He then explains the way in which, in his view, people may have established civil society, and this leads him to conclude that private property is the original source and basis of all inequality.