" The correlation between elms and the botanist's elm thoughts was hard earned; think of all the dreary years he must have spent in graduate school learning to be a reliable elm-detector. Whereas I can now correlate my thoughts with elms practically instantaneously: My mind-world correlation co-opts his [insofar as I use his expertise to identify elms], much as, in the other case, the correlation between my acid thoughts and acids co-opts the correlation between acidity and the color of litmus. What philosophers call 'linguistic deference' is actually the use of experts as instruments; not Marxist division of labor in semantics but capitalist exploitation in epistemology. "

― Jerry A. Fodor , The Elm and the Expert: Mentalese and Its Semantics