Plato and Parallel Justice

Why people behave justly? Is it because of the fear of punishment, or the fear of divine reprisal? Or because behaving just is good to do so? Or is it because the weaker one is scared into submission in the name of law, due to the fear of the stronger? Is justice good in itself, not considering its rewards and punishments? How can justice be defined? Plato sets out to answer these questions in his dialogue, Republic. He wants to define justice in such a way as to show that justice is valuable in and of itself. His objective was to show that justice is worthwhile. …