The shared purpose of both texts is to instruct with a moral lesson.
In Aesop's fable, the narrative illustrates the idea that attempting to avoid one's fate can ultimately lead to unintended consequences, demonstrating the futility of trying to escape destiny. Similarly, in the excerpt from "Romeo and Juliet," Romeo expresses a sense of foreboding about the consequences of attending the party, directly hinting at fate and the tragic outcomes that may arise despite their efforts to control their circumstances. Both texts convey themes about the inevitability of fate and the potential dangers of trying to outsmart it.