Recently I had a little discussion with somebody who claimed that morality comes from within and that it is (therefore) totally subjective. — Matias
That's my view. (Not that I'm the person you had the discussion with.)
If they were, it would be up to any individual either to create or to sample his or her own morality, j — Matias
And indeed it is.
a moral system - unlike a piece of pop-music - has to be coherent and consistent. — Matias
No idea where you're getting that notion from. (Assuming it even works where we're talking about utterances that do not have truth values.)
Therefore moral values and rules exist "out there", they are not objective like the moon, but they have a status that is beyond personal whims and predilections. — Matias
What would that even mean? They're not objective like the moon, but they're not subjective either. What's the third option? (And if it's going to be "intersubjectivity," that doesn't amount to anything aside from the fact that people have subjective moral views that they can then utter objective agreement about, interact with other people with respect to, etc.)
I am (more or less) "free" to choose or adopt among existing moral systems (i.e. values and rules), — Matias
I don't think you are, really. Just as with beliefs, we don't really
choose them. That doesn't mean that we can't influence them at all--although it's not necessarily easy to influence them, but it's not like picking an ice cream flavor or something like that. You're going to believe what you do, feel what you do (about moral issues, etc.) because of dispositions you have, because of deep-rooted other beliefs and feelings you have, etc., where you didn't simply choose your dispositions.
Another point liberal Westerners tend to forget: That we are able to leave the moral world of our family in order go "shopping around" in the market of existing moral systems is a privilege and an exception; it is not typical for morality as such. My guess is that if the vast majority of all people of the present or the past abandoned the moral system of their group (family, caste, class, village...) they suffered severe consequences, from being just the village weirdo, to being ostracized or even killed ("honor killings"). Those who take the moral world of the USA or Germany (as they are today!) to be representative for humankind in general must be really blinkered. — Matias
Here, you're confusing ways that one must behave publicly for practical purposes (to avoid being ostracized, jailed, lynched, whatever) with personal beliefs, feelings, etc.
Morality is a *social* phenomenon — Matias
People interact with each other in many ways that are related to their moral views. That doesn't make the moral views the same as that interaction. That's putting the cart before the horse. If you don't actually
feel that such and such behavior is right/wrong, permissible/impermissible, etc., then it's not a moral view that you hold (even though, for practical purposes, you might publicly act as if you do hold that view). Such feelings can't obtain socially.