Mary: (about John) I could learn to be what he wants. I could change, too.
Charles: Oh, now, hold on. Change isn't always for the better. There's only one thing in this world that you can do better than anyone else.
Mary: What's that?
Charles: Just be yourself.
Mary: It hurts too much to be yourself.
Charles: Well, if you never felt a little bit of the pain of sorrow, then how would you ever know how good it feels to be happy?