What laws were in force in Athens regarding rich and poor citizens? What duties did wealthy citizens perform?

What laws were in force in Athens regarding rich and poor citizens? What duties did wealthy citizens perform? How did the state support poor citizens?

Any citizen, regardless of status, could participate in the government.
Wealthy citizens have to equip a warship at their own expense.
Poor citizens were protected from slavery, and they were given money to buy theater tickets.

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