Okay kiddo, you know how we call things by different names sometimes? Like you have a nickname or your friend might have a different name than their real one? Well, this quote is talking about that idea but with a rose. You know how a rose smells really nice? Well, no matter what we call it, like if we gave it a different name, it would still have that nice smell. So, even if you call a rose something else, it will still smell as good and sweet as always. It's kind of like how people can be called different names, but they are still the same person on the inside. Does that make sense?