Rous ‧ seau, Jean-Jacques /ˈruːsəʊ $ ruːˈs ə ʊ, ʒɒn ʒæk $ ʒɑːn ʒɑːk/ BrE AmE
(1712–78) a French writer and ↑ philosopher , born in Switzerland, whose book The Social Contract developed the idea that governments must always work according to the wishes of the people. His work had a great influence on the French Revolution, and he invented the phrase, ‘Liberty, Equality, Fraternity’, which was later used by people who supported the Revolution. He is also known for writing about the NOBLE SAVAGE .