Joyce questions and challenges the suppositions of conventional literary realism by imitating a variety of discourse modes from daily life. He experiments with the styles of such non-literary discourses as journalism, advertising, pop songs, sentimental novels, proverbs, euphemisms, slangs. The narrative voice in Ulysses undergoes constant shifts and transformations from "Aeolus"(the 7th episode). In "Nausicaa"(the 13th episode), the reader encounters the split narrative voices parodying one another. Joyce sets his comic genius against the cliches and figurative language, highlighting their inappropriateness and suggesting the reality stands outside the descriptive range of ordinary or literary language. Gerty MacDowell in "Nausicaa" falls a victim to the contemporary ideologies through immersing herself in the prevailing discourses, but she fictionalizes her hopeless life to make it endurable one. Various discourse modes struggle for the privilege of representing the world in their own terms. By letting the different voices compete, Joyce demonstrates that there exists no absolute style, no single representational system with an exclusive claim on the right to organize the experiences of life.