2. At least 18 years old, with certain conditions and procedures, recognized by the city-state system. So minors are only potential citizens; Those who live in the polis, are protected by law and have certain rights or affairs are not necessarily citizens; Those who have not experienced some kind of ritual recognition in festival celebrations (such as the acceptance ceremony on the last day of Aptulia Festival in Athens) have not yet obtained citizenship.
3, enjoy equal rights protected by the laws of the city-state, or draw lots, or take turns, or elect to hold public office and participate in public affairs. Its characteristic is the substitutability of citizenship, without hereditary and non-transposable privileges. Those who are not in place are ordinary citizens. Socrates was the chairman of the jury court during the rotation, and he was a philosopher as usual after the rotation.
4. Abide by the laws of the polis, perform civic obligations, and even bring your own armed forces to protect the polis. When talking about the relationship between physis (because of its innate nature) and nomos (customs, norms and laws), the speaker Demosthenes said that law is sacred, godsend, equal and universal. "It is a correction of intentional or unintentional mistakes, a contract of the city-state, and everyone belonging to this country should live according to it." The ancient Greeks, no matter what political system they are in, have a strong concept of the legal system.
5. The spiritual pillar of city-state political system and citizen concept. Ancient tribes were marked by totems. In ancient times, the "kingdom" worshipped national gods or regional gods, such as Duke, the highest god of the first Babylonian dynasty, Amon of the new Egyptian dynasty, and the Lord of the Israeli nation.