Notice that my carefully worded header places morality into a framework of practicality first of all.
I could have asked the question many ways; but, in order to make a certain point I chose this way.
Let us retrace (as briefly as possible) the discussion of THE GOOD by Aristotle.
Aristotle asks: "What is the GOOD?"
He gives examples or analogies of a GOOD physician, a GOOD general and a GOOD carpenter.
What does each do that makes them good? Each accomplishes the goal of his profession.
Respectively:
Healing the sick, winning the battle, erecting a well-constructed house.
HOWEVER...
David Hume comes along and calls this a false analogy as far as MORALITY is concerned.
Hume tells us that Aristotle has erred by pulling a switcheroo in substituting GOOD (as in: skillfull) with GOOD (as in: MORAL) and concludes we would never call a surgeon a MORAL man just because he healed a patient.
THIS IS WHERE OUR DISCUSSION REALLY BEGINS.
Morality can be (and must!) a practical matter.
Living a GOOD life is a matter of actually doing something in the real world. We practice our goodness by doing things. We associate the result of our doing with who did the doing and we produce a person who is evaluated as GOOD.
Are you still with me?
If you intend no harm and yet actually DO harm your practical result is not what your intention is. You will not be pronounced GOOD.
From this we can see it doesn't matter how we view our own MORALITY if our actions produce results that bring harm. After all, our intentions are in our mind and our actions have physical consequences in the real world.
MORALITY, then, comes from doing actual things in the real world that consequently produce GOOD. We become GOOD by doing GOOD.
This solves the ancient problem of derriving OUGHT from IS.
How?
If we follow the correct operational procedures that produce a healed patient, a won battle and a well-constructed house we are GOOD at what we do because the objective has been seen to be accomplished by our correct actions.
Therefore, when we follow the correct operational procedures that produce consequences in our daily life with others the end result will be good results and we will be GOOD because we accomplished our objective in performing GOOD practice of GOOD operations.
To conclude:
RULES (such as OUGHT) can be derived from states of being (IS) because we set an objective goal of actually doing the things which produce good results.
We tell the Truth, we do not steal, we do not kill, etc. because those actions produce negative results in the lives of others and the consequence is negative in our own life when we are held to account for the actions which produced those results.
We are GOOD (moral) when our operational rules for success in life are followed to gain the benefit of the consequences of following those rules: GOOD RESULTS.
THERE IS NO NEED OF A SUPERNATURAL RULE MAKER because doing GOOD follows naturally from identifying good results and reverse-engineering the operations that produce the best results as a practical matter.
MORALITY IS PRACTICAL. It is not the result of God.
Discussion?