Bourdieu reminds us that language does not operate purely upon logical bases, but rather is executed within the social world (and is not mere execution).
A politician's speech is to the scholastic philosopher's speech what the categoremes of everyday life are to empirical statistics and logic, a practical mode for a theoretical one.
This practical mode accomplishes the same tasks but is not directed by theoretical "logic" as much as the need to accomplish tasks, of philosophy, of science, of art.
Nordau here makes an argument for sanity in art, at the same time that he makes an argument for the subjective choices of the artist. Sane artists produce externally-
determined and perceptual art, whereas insane artists produce internally-determined and
idealistic art.
Though, art does not simply mirror reality. The artist chooses to put certain elements in his images. If the painting is not a documentary record over all, then it is a document of the "soul" of the artist, according to Nordau.
   
The global tendencies toward logic used in the positivist formulation of realist methodologies in art take for granted the emotions that initiate artworks, and take for granted the social construction of knowledge and language. The exclusionary tactics of bourgeois and positivist realism of the likes of Zola sought to replace ordinary language with observation and fact collecting in the construction of novels, literary works which were only tied to alternative avenues to logic in their disposition to reconcile, as Brian Nelson remarks, positivist and Darwinist tendencies or the positivist desire for social responsibility and the Darwinist perception, in the 19th century, of the survival of the fittest applied to social behaviors.(Baguley, 1986,165). But Zola's comment that "If they only knew how much the blood-thirsty creature, the ferocious novelist, is a worthy bourgeois...(ibid, 171)", posits the positivism over the Darwinism, although in the medical professions Darwinism is understood by those who, taking into account the degenerate condition of fin de siecle taste and its practitioners as opposed to those who are healthy, tend toward social responsibility. Does the desire for social responsibility basically unaffected by the social survival of the fittest rule out beforehand a social understanding of language? According to those who assert the power of Realism as their method through the plot and the position of characters in their work, and this does not mean the realistic use of perception in the healthy production of artworks, the use of language is perceived as almost completely transparent so as to justify logical theories of language such as the picture theory of language.

The picture theory of language also pictures knowledge as immediately retrievable and disseminable, an interactivity with knowledge that is demanded by logical strictures. The logic of immediate gratification as an antithesis to persisting to a research goal, wants to evolve from the thinking of thought to the thinking of actions, doing away with the very separation of the media from the mediated or the world from the book, in the way that only speech can do. Through unnatural means of making knowledge immediate, meaning alternatively to the mind and speech, realism then (utilizing the picture theory of language) seeks to construct a veritable matrix of sensation and stimulus, at the speed of thought. These are the type of virtual realities which utilize simulacra, although the reason for this too is that virtual reality is an extension of photography or painting except it is utterly dependent upon writing, a commonality then with realism in literature although that is not dependent upon the visual, except that is, in the activation of the thoughts and mind. The activation here is an extension of the logical apparatus which constructs these matrices of instant gratification. The mind of Realism works in tandem with logic but immediate gratification does not include the vulgar, for the vulgar is the effect of the everyday which must be incorporated, unnaturally into research, such as in a vulgar sociology which seeks no logical coherence...
 

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