Hey if Martin Luther can say it I don't see you guys can't!!
"Works are necessary for salvation but they do not cause salvation; for faith alone gives life." - Ewald M. Plass, What Luther says" page 1509
Of course I found this on Wikipedia, I don't have Plass' book, and it always seems dubious when sayings aren't found in an actual text.
Well, if you want to quote Luther- excerpts from the Preface of his commentary on Romans:
"That is why faith alone makes someone just and fulfills the law; faith it is that brings the Holy Spirit through the merits of Christ. The Spirit, in turn, renders the heart glad and free, as the law demands. Then good works proceed from faith itself. That is what Paul means in chapter 3 when, after he has thrown out the works of the law, he sounds as though the wants to abolish the law by faith. No, he says, we uphold the law through faith, i.e. we fulfill it through faith."
"Faith is not that human illusion and dream that some people think it is. When they hear and talk a lot about faith and yet see that no moral improvement and no good works result from it, they fall into error and say, "Faith is not enough. You must do works if you want to be virtuous and get to heaven." The result is that, when they hear the Gospel, they stumble and make for themselves with their own powers a concept in their hearts which says, "I believe." This concept they hold to be true faith. But since it is a human fabrication and thought and not an experience of the heart, it accomplishes nothing, and there follows no improvement.
Faith is a work of God in us, which changes us and brings us to birth anew from God (cf. John 1). It kills the old Adam, makes us completely different people in heart, mind, senses, and all our powers, and brings the Holy Spirit with it. What a living, creative, active powerful thing is faith! It is impossible that faith ever stop doing good. Faith doesn't ask whether good works are to be done, but, before it is asked, it has done them. It is always active. Whoever doesn't do such works is without faith; he gropes and searches about him for faith and good works but doesn't know what faith or good works are. Even so, he chatters on with a great many words about faith and good works.
Faith is a living, unshakeable confidence in God's grace; it is so certain, that someone would die a thousand times for it. This kind of trust in and knowledge of God's grace makes a person joyful, confident, and happy with regard to God and all creatures. This is what the Holy Spirit does by faith. Through faith, a person will do good to everyone without coercion, willingly and happily; he will serve everyone, suffer everything for the love and praise of God, who has shown him such grace. It is as impossible to separate works from faith as burning and shining from fire. Therefore be on guard against your own false ideas and against the chatterers who think they are clever enough to make judgements about faith and good works but who are in reality the biggest fools. Ask God to work faith in you; otherwise you will remain eternally without faith, no matter what you try to do or fabricate.
Now justice is just such a faith. It is called God's justice or that justice which is valid in God's sight, because it is God who gives it and reckons it as justice for the sake of Christ our Mediator. It influences a person to give to everyone what he owes him. Through faith a person becomes sinless and eager for God's commands. Thus he gives God the honor due him and pays him what he owes him. He serves people willingly with the means available to him. In this way he pays everyone his due. Neither nature nor free will nor our own powers can bring about such a justice, for even as no one can give himself faith, so too he cannot remove unbelief. How can he then take away even the smallest sin? Therefore everything which takes place outside faith or in unbelief is lie, hypocrisy and sin (Romans 14), no matter how smoothly it may seem to go."
I think that answers your original hypothesis.