"when you say, "Doctrine doesn't matter; what matters is that you live a good life," that is a doctrine. It is called the doctrine of salvation by your works rather than by grace. It assumes that you are not so bad that you need a Savior, that you are not so weak that you can't pull yourself together and live as you should. You are actually espousing a whole set of doctrines about the nature of God, humanity, and sin."