The republic is a book written by Plato some 360 B.C.E and it depicts conversations Socrates had concerning justice when he was at the port of Piraeus. Throughout the dialogue, Socrates, through a proper understanding of human psychology, tries to enlighten the participants explaining that even after they have been enlightened and emancipated, they must also enlighten those who are still in the dark concerning the concept of justice.
To state with, Socrates highlights the importance of unity in bringing victory and happiness for the state. Through unity, wars can be won and people can be elevated from unnecessary suffering. Socrates argues that if everyone is given a chance to be educated and nurtured, they can move out of poverty as they can innovate their own ways to survive, thereby moving from poverty (Plato). Education and nurture form a strong foundation for a happy state. Democracy and freedom can also emancipate a state and give its citizens happiness as they will be allowed to alter and make their constitutions as they think suits them. a state should also free the citizens from corruption as it may bring happiness to a few individuals at the expense of the whole state
In conclusion, greatest happiness for the greatest number of people in any given state can be brought through education, unity, democracy, citizenship, avoiding corrupt dealings, providing freedom, and creation of balance between poverty and wealth.