Justice in the individual is now defined analogously to justice in the state. The individual is wise and brave in virtue of his reason and spirit respectively: he is disciplined when spirit and appetite are in proper subordination to reason. He is just in virtue of the harmony which exists when all three elements of the mind perform their proper function and so achieve their proper fulfillment; he is unjust when no such harmony exists.
PlatoIt's like this, I think: the excellence of a good body doesn't make the soul good, but the other way around: the excellence of a good soul makes the body as good as it can be.
PlatoIf you ask: What is the good of education? The answer is easy: Education makes good men and good men act nobly.
PlatoThe cause of all the blunders committed by man arises from this excessive self-love. For the lover is blinded by the object loved; so that he passes a wrong judgment on what is just, good and beautiful, thinking that he ought always to honor what belongs to himself in preference to truth. For he who intends to be a great man ought to love neither himself nor his own things, but only what is just, whether it happens to be done by himself, or by another.
Plato