This great publicity resulted in the book being translated into almost all the languages of Europe. Voltaire said that it lacked originality. Rousseau declared that the very benevolence of the author gave the lie to his principles. Grimm thought that all the ideas in the book were borrowed from Diderot. Madame du Deffand felt that Helvétius had raised such a storm by saying openly what everyone thought in secret. Madame de Graffigny claimed that all the good things in the book had been picked up in her own salon.