Sentence:  Such was the impromptu that Voltaire gave to howls of laughter at Sans Souci and that was soon circulated in manuscript throughout the literary circles of Europe , to be printed sometime later , but with the name of Timon of Athens , the famous misanthrope , substituted for that of <WSD>Rousseau</WSD> . 
Meaning of the word marked with <WSD> tags:  French philosopher and writer born in Switzerland; believed that the natural goodness of man was warped by society; ideas influenced the French Revolution (1712-1778)