[Darren] Ok, one can imagine how to make a lot of money at street crime, but I seriously doubt if anyone does. It's just not a real career option for anyone wanting to do more than just live hand to mouth.
[Bm] What is a "should"? What are commands? The moral person would no more thrust his hand into another's pocket than into a nest of vipers. Shoulds and commands are for those who lack insight and must be told what to do. I have not (yet) read Aristotle (is this the Nicomachean Ethics?), but morality as enlightened prudence sounds right to me.

You see - you can prove it, with one of these. You just need to know the wavelength of the light which will tell you where it is on teh spectrum which will (in most cases) be able to be proved to be a certain colour (except for those "No it's yellow" "no it's not it's orange" conversations.)

[st d] Whether you can prove it or not wasn't the point - it was whether you needed to prove it, or indeed whether you even needed to know a proof was possible.

of course - silly me.

[st d] Well done though.

Wow, this moves fast...
Raak] If by the case of Iraq you mean the resistance against the US/British occupation, then I'd agree that they are morally justified (without necessarily meaning that each and every one of the resitance's actions are morally justified). I suspect that's not what you mean though.
I think the core problem here is where you say "That is the key difference between empirical knowledge and moral knowledge: one is demonstrable and the other is not." If moral knowledge is not demonstrable in some way, then how do we learn it, other than by faith? And given that there are lots of possible belief systems, many of which disagree very strongly with each other, how do we distinguish between right and wrong belief systems?

Darren] I still don't see how you can know whether a proof is possible, without knowing how you are testing it.

[Irouléguy] I think we've moved slightly from rulesets to proofs... the thing is, I don't think you need to prove a mapping is anything other then a mapping. It could be totally arbitrary, with no proof possible, but as long as you had a consistent mapping from one category to another, or, as I said above, a subset of one to a subset of the other, then that's sufficient. A ruleset doesn't need to be grounded in the real world to be a ruleset. It can be entirely abstract, but as long as it doesn't contradict itself then that's good enough as far as the logical proposition is concerned.

[Irouléguy] Indeed it wasn't! This may be getting into the stuff of flame wars, but I had in mind (as you no doubt guessed) the removal of Saddam as the moral act, and cannot see any of the resistance "actions" (i.e. suicide bombing, suicide bombing, and suicide bombing) as moral acts, especially given that the resistance is coming from the Sunni minority whose goal is Islamic dictatorship. Which of their actions do you think are morally justified?
       How do we learn morality? Upbringing, practical experience, revelation, and reason applied to those. As someone once put it: "If you get it, it will be in spite of any method. You must have a method."

[Raak] Hm, I don't think I'll bother continuing with this. Nothing you've suggested as an example needs more explanation than simply that humans enact moral (and legal) consequences upon one another according to the collective effect of shared or accumulated beliefs. This is the main reason muggers (nowadays) can have little success (even ignoring the fact that poverty is probably as much a cause of mugging as vice versa). Sure, all this might be the manifestation of some deeper mechanism, but it could just as easily be a bottom-up emergent phenomenon (rab can correct my terminology if I'm using this expression wrongly) that arises out of our brain chemistry and its interactions with the environment etc. etc. From what we know, this seems to me the most conservative and most available explanation. Why invoke absolute good, absolute evil? It still seems to me that you might as well invoke God. Certainly the notion of absolute good and evil, once you start trying to define them to the letter (in the case of say, the actions of Iraq's invaders and Iraq's resistance), admit of as many conceptual problems as the notion of God. Unless you can tell us more about the reasons for your willingness to entertain your leap of faith (and you've said you can't), I feel we're really just pushing words around.

[rab] Good idea re defining morality. We could take our pick from the 11 definitions, some claimed obsolete, offered by the OED. The ones it thinks are current are:

• Moral virtue; behaviour conforming to moral law or accepted moral standards, esp. in relation to sexual matters; personal qualities judged to be good.
• Moral discourse or instruction; a moral lesson or exhortation. Also: the action or an act of moralizing.
• Conformity of an idea, practice, etc., to moral law; moral goodness or rightness.
• The quality or fact of being morally right or wrong; the goodness or badness of an action.
• The branch of knowledge concerned with right and wrong conduct, duty, responsibility, etc.; moral philosophy, ethics.
• A particular moral system or outlook; moral thought or conduct in relation to a particular form of activity.

Rather a hazy selection, no?

[Projoy] Quite. I had a think about definitions, came up with one and devised a framework for thinking about this whilst queuing in the bank this morning. Then the teller muttered something about ISAs and it all vanished. Oh dear. I also have more pressing things to worry about, in that I have in two weeks an interview for a job I really, really want and for which I expect the competition to be fierce. So I really need to pull out the stops, so if you don't hear from me it's cos I'm doing my homework.

Not posting on MC sites! Is this moral? :)

[rab] Morality: that which does not involve ISAs.

[Projoy] "Emergent phenomenon" isn't an alternative to other explanations -- it exists alongside them. For example, I am of the opinion that the mind is literally a physical process of the brain, which assembles itself by knowable (though currently almost entirely unknown) physical processes, so all the stuff we do is an emergent phenomenon of the molecules. That doesn't mean that that stuff -- thoughts, sensations, consciousness, etc. -- doesn't exist, although discoveries about the physical stuff can call into question our naive ideas about our experiences of our minds.
       As a last remark, I don't want to give the impression of hinting at mysterious mystical revelations (and I cynically suspect that a lot of accounts of such are describing nothing more mysterious than a minor stroke). The experiences that I can find no adequate way of communicating are no more than a few personal development courses I've taken, following which some religious language became a lot more comprehensible, and reading in a couple of quasi-religious traditions of disputed provenance (the works of Gurdjieff and Idries Shah).

Ahh. So you're saying that objective morality is a high-level description for a de facto emergent phenomenon? Well, we agree, then! It's only if you're insisting it's transcendent of the nuts and bolts of human behaviour and psychology that we have a fundamental disagreement.

I did say I'd shut up, didn't I? I will now shut up.

[Projoy] Actually, I'm agnostic about what it is. It might be that, and it might not be.

[Raak] You're right in a literal sense that "commands" are for those who need to be told what to do, but the point I was trying to make is that morality, if it is real, is normative. That is, it carries an implicit command in itself, irrespective of whether anyone is standing there articulating it. If it is true that there are people with moral insight who can "see" these truths, then they would also be able to "see" this implicit command and respond to it one way or the other (would you, incidentally, accept the existence of people with moral insight who nevertheless act wrongly?). Enlightened prudence (and yes, it's the "Nic Eth" I was thinking of, but any other kind too) doesn't cover it. When people say "Murder is wrong" they don't mean that it's in your interest (or even in the general interest) not to murder people - they mean that it's wrong, that you shouldn't do it, not even in an extraordinary case where it's beneficial. That's what Crime and Punishment is about. I haven't seen any argument explaining why, in the example given before, a soldier should sacrifice himself for his friends. I haven't even seen an argument explaining why I should not murder. I can imagine an argument setting out the undesirable effects of my murdering, but that's not the same thing. Jesus said "Seek first the kingdom of God and his righteousness, and all these other things will be given to you" - but he meant that happiness comes as a result of doing what's right, that is, as a reward. He didn't mean that happines literally is doing right, and I wouldn't have thought many people would either. Purely from an empirical standpoint, how many people would agree that the happiest people in world are also the most moral?
[Darren] The guilt point is a good one, but you'd have to argue that the guilt of doing something you believe to be bad would always outweigh any happiness you derived from the benefits of the bad act, which I think would be unlikely - people generally rationalise such things eventually. Plus, of course, it's no use when trying to make an objective account of morality, as you point out, because different people feel guilty about different things.
A shame Projoy's bowing out as I think he's been entirely right throughout this. But like him I'm not sure that much headway is being made in any direction, so perhaps I'll do the same!

[Bm] In which case, perhaps it's time to draw the whole question of "what is morality" to a close.

[Bm] Here's a thought: if immoral actions are those which we feel guilty about, then perhaps as guilt wears off the actions become less immoral! Has anyone ever claimed that a given action is (im)moral for perpetuity, or is it allowed for its status to change with time? Note that I'm not putting this idea of transient immorality forward as anything too serious, I'm just playing around with the concept to see what happens.

After all, most people would say (I think) that once you've done a particular immoral action once or twice, it becomes easier to do it later. I'm talking here about personal morality rather than any kind of universal morality, of course.