"What Fielding was to the eighteenth century and Dickens to the nineteenth, Sinclair is to our own. The overwhelming knowledge and passionate expression of specific wrongs are more stirring, more interesting, and also more taxing than the cynical censure of Fielding and the sentimental lamentations of Dickens."
January 1, 1970
https://en.wikiquote.org/wiki/Upton_Sinclair