I've read the book and heard the song, but have yet to see the movie! Below are some of my favorite lines from the book.
"Oh, you get used to anything," I said, annoyed with myself, for actually I was proud of the place.
"I don't. I'll never get used to anything. Anybody that does, they might as well be dead."
"It may be normal, darling; but I'd rather be natural."
"Never love a wild thing, Mr. Bell," Holly advised him. "That was Doc's mistake. He was always lugging home wild things... But you can't give your heart to a wild thing: the more you do, the stronger they get. Until they're strong enough to run into the woods. Or fly into a tree. Then a taller tree. Then the sky. That's how you'll end up, Mr. Bell. If you let yourself love a wild thing. You'll end up looking at the sky... Good luck: and believe me dearest Doc- it's better to look at the sky than live there. Such an empty place; so vague. Just a country where thunder goes and things disappear."