Maria : [singing] Perhaps I had a wicked childhood, perhaps I had a miserable youth. But somewhere in my wicked, miserable past, there must have been a moment of truth. For here you are standing there loving me, whether or not you should. So somewhere in my youth or childhood, I must have done something good. Nothing comes from nothing, nothing ever could. So somewhere in my youth or childhood, I must have done something good. Captain : [singing] For here you are standing there loving me, whether or not you should. Maria : [singing] So somewhere in my youth or childhood, I must have done something good. Captain & Maria : '[singing] Nothing comes from nothing, nothing ever could Maria : [singing] So somewhere in my youth... Captain : [singing] or childhood, Maria : [singing] I must have done something, Captain & Maria : [singing] something good.

http://www.moviequotedb.com/movies/sound-of-music-the/quote_21982.html