Take what you need from other writers.
I think the writer, as I’ve said before, is completely amoral. He takes whatever he needs, wherever he needs, and he does that openly and honestly because he himself hopes that what he does will be good enough so that after him people will take from him, and they are welcome to take from him, as he feels that he would be welcome by the best of his predecessors to take what they had done.
Source: Open Culture