I once found a little excerpt from Balzac. He speaks about a young writer who stole some of his prose. The thing that almost made me weep, he said, “I was so happy when this young person took from me.” Because that’s what we want. We want you to take from us. We want you, at first, to steal from us, because you can’t steal. You will take what we give you and you will put it in your own voice and that’s how you will find your voice.
There's also a great anecdote about the making of 'The Godfather':
I said, “I want you to come and be hungry.” And they came to a restaurant that I had arranged, the back room of the restaurant, just a table that looked like a home. Marlon, I had sit at the head of the table, and to his right I put Al Pacino, and to his left I put Jimmy Caan. I put Bobby Duvall, and I put Johnny Cazale, and I had my sister Talia, who played Connie, serve the food.
They had a dinner improvisation together, and after awhile everyone is relating to Marlon as the father, and Jimmy Caan is trying to impress him with jokes, and Al Pacino is trying to impress him by being intense and quiet, and my sister was so frightened – she was serving the food. And after that dinner they were the characters.
The full interview can be found here.