In "The Republic" by Plato, the comrades of Socrates express three views of justice. Justice is giving what is owed, good to good people and bad to bad people; the interest of the stronger, governing parties; and a social necessity for the weak, but not valuable once one becomes strong.
"The Republic" is one of Plato's most popular works. In it, he uses the character of Socrates to explore the role that justice plays in a society and the lives of individuals living within it. In the first two books, Socrates is given three different views on justice, which he disagrees with and tries to refute. This leads into a lengthy dialogue about the state, the individuals within it, education and the nature of all things.