Rhetorical device used in Romeo and Juliet assignment

"A rose by any other name would smell as sweet," a shortened version of the real quote that William Shakespeare had wrote in Romeo and Juliet, is well-known for its beautiful meaning. The actual full quote of the play is, "What's in a name? that which we call a rose by any other name would smell as sweet; So Romeo would, were he not Romeo call'd." The use of this quote was to show that Romeo loved Juliet regardless of the fact that she was part of the Capulet family. Despite that fact that the Montague family proclaimed her as the ruthless and provoked enemy, Romeo still believed that she was still the woman of his dreams.
This quote is well-thought out and lets the readers know that there is actually more to this sentence when you look deeper into it. The use of this quote in the play is to show others that you can't judge a book by it's cover. To further go into detail, "A rose by any other name would smell as sweet," is a quote that intends to tell people in a way, that whatever you call a person, whether it's a bad insult or a nice compliment, they will still be whoever they are. Words do not change who they become.


EDIT:
The rhetorical device that William Shakespeare had planned to used was very tricky and mind-twisting. However, the rhetorical device for this quote leans more toward metaphor than it does as a simile. In this quote, "What's in a name? that which we call a rose by any other name would smell as sweet; So Romeo would, were he not Romeo call'd," we notice the words "as," in which Juliet compares Romeo to a rose. Meaning, it can kind of be a simile. However, it doesn't really state what the rose smell as, right? "...Would smell as sweet," the word "as" is in between "smell" and sweet". How can smell and sweet be compared? It can't. Hence, why I believe this quote is more of a metaphor due to Juliet's double interpretation from describing Romeo's personality with a rose, in addition to describing the rose itself.