When writing a rhetorical analysis essay, good evidence is absolutely essential to support your claims about the author's rhetorical strategies. There are a few key things to keep in mind when selecting evidence:
While there is no definitive number of quotes required, incorporating more than just a couple of pieces of textual evidence bolsters the credibility of the argument regarding the author's rhetorical choices.
the essay should incorporate evidence of more than one type of rhetorical device. For example, solely utilizing examples of alliteration does not provide a comprehensive perspective. To remedy this issue, the student should thoroughly reread the text searching for additional examples of rhetorical techniques like patterns in word choice, syntax, figurative language, literary devices, and other strategies. Identifying and integrating textual evidence of at least three different categories of rhetorical devices further substantiates the analysis and provides a multi-faceted understanding of how language is employed to accomplish a purpose. Pulling specific examples of different techniques like alliteration, metaphor, irony, etc. allows the essay to examine the nuances and reinforce that multiple strategies are being used in tandem to create an effect, rather than just one isolated approach.
Something to avoid is choosing textual evidence that is so straightforward that the quote speaks for itself. This will most likely result in the analysis simply summarizing the rhetorical device rather than providing the deeper insight required to get all 4 points. You should select quotes that require thoughtful examination to illustrate the nuances of the author's rhetorical choices.
Varied, substantial textual support is the foundation of an effective rhetorical analysis. By pulling in specific examples of different rhetorical techniques, you can comprehensively examine and explain how the author employs language to accomplish their purpose. Following these principles of evidence selection strengthens the analysis and allows the author to convincingly demonstrate their claims.