life; but the criticism that his characters are "cardboard" is substantially more damaging. Zola, by refusing to make any of his characters larger than life (if that is what he has indeed done), did not inhibit himself from also achieving verisimilitude. Although Zola found it scientifically and artistically unjustifiable to create larger-than-life characters, his work presents some larger-than-life symbols which, like the mine Le Voreux in Germinal, take on the nature of a surrogate human life. The mine, the still in L'Assommoir and the locomotive La Lison in La Bête humaine impress the reader with the vivid reality of human beings. The great natural processes of seedtime and harvest, death and renewal in La Terre are instinct with a vitality which is not human but is the elemental energy of life. Human life is raised to the level of the mythical as the hammerblows of Titans are seemingly heard underground at Le Voreux, or as in La Faute de l'Abbé Mouret, the walled park of Le Paradou encloses a re-enactment—and restatement—of the Book of Genesis. Zola's optimism In Zola there is the theorist and the writer, the poet, the scientist and the optimist – features that are basically joined in his own confession of positivism; later in his life, when he saw his own position turning into an anachronism, he would still style himself with irony and sadness over the lost cause as "an old and rugged Positivist". The poet is the artist in words whose writing, as in the racecourse scene in Nana or in the descriptions of the laundry in L'Assommoir or in many passages of La Faute de l'Abbé Mouret, Le Ventre de Paris and La Curée, vies with the colourful impressionistic techniques of Claude Monet and Pierre-Auguste Renoir. The scientist is a believer in some measure of scientific determinism – not that this, despite his own words "devoid of free will" ("dépourvus de libre arbitre"), need always amount to a philosophical denial of free will. The creator of "la littérature putride", a term of abuse invented by an early critic of Thérèse Raquin (a novel which predates Les Rougon-Macquart series), emphasizes the squalid aspects of the human environment and upon the seamy side of human nature. The optimist is that other face of the scientific experimenter, the man with an unshakable belief in human progress. Zola bases his optimism on innéité and on the supposed capacity