The polis of ancient Greek in ethical words ——Ethical explanation of polis idea of Aristotle

Exploration of Aristotle to the virtue of justice is under the background of ideal polis community. The polis that Aristotle designs is a natural ethic entity with virtue life as its form or natural aim. The polis just likes an organism but not an organism. The polis has precedence over citizens, and citizens are under obligations to the polis. But citizens as the ethic member have abroad ethic rights. So the ethic order of the polis is not a uniform one of whole nationalism, but a cooperative one based on free and equal citizens with the ethic entity as its core. The polis citizens are free individuals, and they are equal each other.