Quote 1
Kevin jumped in. "So… you change your name whenever you get tired of it?"
"Whenever it doesn't fit anymore. I'm not my name. My name is something I wear, like a shirt. It gets worn, I outgrow it, I change it" (13.23-24)
In an attempt to explain her name during her "Hot Seat" interview, Stargirl clearly shows that she thinks that your identity is not something that is created by any outside sources, not even a name. She believes that we are much more than our names, and our names should reflect who we are. Who we are changes, so names should, too.
Quote 2
"Did you know there's a country with officially designated 'enchanted places'?" […] I think it would be neat if we had that here. You'd be walking or riding along, and there would be this stone marker with a brass plate: 'Enchanted Site: U.S. Department of Interior.'"
"We'd litter it up," I said (17.58-63)
Would marking places as "enchanted" help people connect to and respect their surroundings more as Stargirl hopes, or would we just litter it up, like Leo thinks? He's being a bit cynical, but the dude has a point.
Quote 3
"The earth is speaking to us, but we can't hear because of all the racket our senses are making. Sometimes we need to erase them, erase our senses. Then—maybe—the earth will touch us. The universe will speak. The stars will whisper" (17.85).
Stargirl believes that to connect, you must forget about your physical body and set your mind free to hear without your physical ears. It is then that you may be able to hear the wisdom of the universe. Hey, in a way, doesn't Leo do this already? It is in the quiet of the night when his senses are limited, meaning it is dark and quiet, and he is aware of the moonlight that he gets some insights, right?