Abstract
From Plato to Hobbes, many philosophers established the fact that the human nature is bad. For instance, while Machiavelli asserted that sometimes the prince ought to be cruel and should use violence to ensure the salvation of the State, Hobbes declared that a society should be created and a unique and extremely powerful authority ought to be recognized to put an end to the war against the common people engendered by the equality of men established in the state of nature. However, in his Discourse on the origin of inequality, Rousseau developed something truly different. Therefore, throughout this review, I will attempt to study Rousseau's theory about the establishment of human societies which led to the creation of inequalities among men.
