Phil Christman on It’s a Wonderful Life:

And it makes sense that in a film so focused on the necessity of a whole social web, of interpersonal love and loyalty, greatness would ultimately be something we ultimately derive from each other—a kind of common property. My friend Olivia quoted the line “your money is in Joe’s house and Jack’s house and the house next door to you.” Harry’s greatness (his war heroism) is in George, who saves his life; George’s is in Mary. Where did Mary’s come from? It’s outside the scope of the film, but it didn’t start with her, either.