MedicMan
St John Ambulance medic, with God as his guide
- Jan 8, 2007
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Note: I've been arguing this in another thread, but it seems appropriate to drop it here as well, at the point this thread has reached 
If local customs from all over the world share some identicalities, why are these instances not objective? If every single culture in the world judges that it is wrong, say, to murder in cold blood, then can we not be justified in saying that it is universally wrong (and therefore objectively wrong) to kill in cold blood? When Newton discovered gravity, did he think, "Everyone on this planet is held to the ground by a force that appears to be the same the world over. However, these could be several different, local forces." No, he realised, quite correctly, that gravity is universal and therefore objective; i.e. he reasoned that universality <=> objectivity. No scientist would argue that the laws of science that they predict are subjective, but that they are objective because they apply universally to the entire world.
Well, then, surely a particular moral principle that is held by every community on this planet is a universal moral principle, and therefore an objective moral principle? For if three people had all discovered gravity in different ways, would they have discovered three separate forces? Definitely not! Similarly, even though different communities may have different motivations for outlawing certain actions the end result is the same - the action is outlawed. A tribal chief says, "I will not allow murder in my village because if my people are allowed to kill whoever they like then the village will die out," and a Church leader says, "Murder is wrong because it displeases God," they have both arrived at the same conclusion - murder is wrong. And since this then becomes universally true, since every community in the world reasons that murder-in-cold-blood is wrong, by the same principle that we established gravity's objectivity we may establish the objectivity of the moral wrongness of murder-in-cold-blood.
Murder in cold blood is universally wrong => Murder in cold blood is objectively wrong
If local customs from all over the world share some identicalities, why are these instances not objective? If every single culture in the world judges that it is wrong, say, to murder in cold blood, then can we not be justified in saying that it is universally wrong (and therefore objectively wrong) to kill in cold blood? When Newton discovered gravity, did he think, "Everyone on this planet is held to the ground by a force that appears to be the same the world over. However, these could be several different, local forces." No, he realised, quite correctly, that gravity is universal and therefore objective; i.e. he reasoned that universality <=> objectivity. No scientist would argue that the laws of science that they predict are subjective, but that they are objective because they apply universally to the entire world.
Well, then, surely a particular moral principle that is held by every community on this planet is a universal moral principle, and therefore an objective moral principle? For if three people had all discovered gravity in different ways, would they have discovered three separate forces? Definitely not! Similarly, even though different communities may have different motivations for outlawing certain actions the end result is the same - the action is outlawed. A tribal chief says, "I will not allow murder in my village because if my people are allowed to kill whoever they like then the village will die out," and a Church leader says, "Murder is wrong because it displeases God," they have both arrived at the same conclusion - murder is wrong. And since this then becomes universally true, since every community in the world reasons that murder-in-cold-blood is wrong, by the same principle that we established gravity's objectivity we may establish the objectivity of the moral wrongness of murder-in-cold-blood.
Murder in cold blood is universally wrong => Murder in cold blood is objectively wrong
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