Who is this quote said by in The Miracle Worker?

Question

"She is like a little safe, locked, that no one can open. Perhaps there is a treasure inside."

Thanks
-MC

Answer 1

Near the end of Scene 4.
http://www.nexuslearning.net/books/Holt_ElementsofLit-3/collection%2012/The%20Miracle%20Worker%20Act%201%20P3.htm