Plato in His Claims

Plato is accurate in the claims he makes on human nature. I don’t believe we do things just to be just, we do them because of how it makes us feel which in return is a reward, Sometimes we don't do a certain thing even if it is the right thing to do because of how it will make us feel, For example we may not tell someone their partner is cheating. Is this just? The right thing to do would be to enlighten them but often one would choose not to because of the outcome that will come from the information. Who is right in saying it is just not to say the truth.

What is your estimation of Plato's claims regarding human nature? Is Plato accurate in the claims he makes regarding human nature? Or is he mistaken--and, if so, how?

I believe that Plato is accurate in his claims regarding human nature. I think he estimates that reason, aggression, and appetite are the three defining parts of human nature. Depending on which dominates you get three types of people, who’s needs are knowledge, power, and wealth. Plato believes reason should dominate; aggression and appetite have no knowledge to order themselves and need to be brought under the control of reason. Through reason we can discover the truth about how to live, and when aggression and appetite are subordinate to reason we live according to this truth. When you learn to gain control of your aggression and appetite you do what reason says is best.