Some scholars resist using Western literary theory to analyze African-American literature. As the Harvard literary scholar Henry Louis Gates, Jr., said, "My desire has been to allow the black tradition to speak for itself about its nature and various functions, rather than to read it, or analyze it, in terms of literary theories borrowed whole from other traditions, appropriated from without." One trope common to African-American literature is "signifying". Gates claims that signifying “is a trope in which are subsumed several other rhetorical tropes, including metaphor, metonymy, synecdoche, and irony, and also hyperbole and litotes, and metalepsis.” Signifying also refers to the way in which African-American "authors read and critique other African-American texts in an act of rhetorical self-definition".