Major-deviations-in-social-contract-theory-introduced-by-Rousseau

Rousseau starts his discussion of the social contract in some ways that are very similar to that outlined by Hobbes and Locke. That said, he introduces some radically different ideas in this first book of On the Social Contract. Write a post in which you identify and discuss one of the major deviations in social contract theory introduced by Rousseau in this first book (considering chapters 1-9). As usual, your post should be about 250 words.