@newspeak,
we live in the real world and think in the abstract...The Greeks wanted to learn what good was so they could teach it... What if it springs out of emotion, out of the affection of one person for another??? Those people were watching their society go apart at the seams all the while thinking they could abstract and teach goodness while their economy made slaves of some to the masters among them as it weakened all... Now that it is happening to us, when the whole form of dociety is losing value and so, meaning because being good means an early death while appearing good but doing evil might mean wealth and survival...
To See what ethics is and what ethics in action looks like we have to look to intact societies, and that was always extended family groups like Gens, or phratries, or tribes, were wealth was held in common and held as a commonwealth..
Now, we are supposed to be a commonwealth, but so were the Greek and Roman societies, but wealth and victory destroyed their equality and without equality they had no democracy, and under such circumstances ethics becomes meaningless... We have better vision than the Greeks...It is true that they were fascinated by other nations, but they were too nearly at their same level to judge them properly, and no society without a good history can grasp what it loses over time by subtle shifts of behavior... Yet we (can almost all) still remember how it feels to have a family, to stand with family against school mates or stangers, and that behavior is at its heart ethical, motivated by emotion, and justified by blood ties...
We may not understand this fact if our individual communities work; but for people torn apart from their communities or sheered off from society as individuals, there is a great desire to reconstruct the community... Mr. Obama mentioned clinging to guns and religion... It is not an insult..That is what people do when their communities are under attack, when one form of society it atomizing, people reform... Gangs, and tribalism is another form, though illegal, of the same behavior... People need family, and they need community because it is communities that defend rights... The reason our country is falling apart is that money is feeding upon people and the society as structured is not defending rights...People do not form labor unions because they like dealing with politics and business agents and paying dues... Unions are forced on people just as religions and gangs... If the society doesn't defend them, but rather expedites their destruction and exploitation, which are both the same; then people need defense even more...