The people in power do not have to be favored by the laws in the community, but the laws should support all. A community that practices justice and instills knowledge to its citizens will prosper, unlike a community, which does not. Knowledge is the key to good and outstanding leadership because knowledge carries with it all the right virtues.
Protagoras is very communitarian and anti-individual. He argues in the case of justice that to live together we must act politically, respect others, realize our compulsion to others and act justly. The harmony of all this things will only be achieved by education. Political and social skills need to be taught to uphold justice and ethics. If a city decides an issue to be just and okay, then the facts are just and fine for it, so long as it reserves the opinions. Cicero in his time focused mostly on defending the Roman Republic.
Democracy is seen in a community when justice is agreed upon jointly. Protagoras responds by giving a lengthy speech about the creation of the world. He states that indeed virtue is teachable since political systems believe that all citizens can have virtue. Likewise, criminal justice systems are based on the view that citizens can be reformed or taught to be virtuous. It is hard to be good, but it is also impossible to be good all the time. This is because human beings are forced to behave badly by some circumstances in life. This situation implies to ignorance as shown by Protagoras. He states that the only evil is a lack of knowledge and behave badly while knowing what is good. Protagoras has accepted that wisdom, restraint, justice, courage and sanctity all mean virtue and morality are other names for knowledge. This means that virtue can be taught.
Platos’ philosophical ideas about justice were intelligible, static matter, accessible to the mind and not to the senses. His ideas provide the lone dependable standard for knowledge and good judgment. A person