"Then, Thrasymachus, will a soul ever accomplish its work well if deprived of its virtue, or is that impossible?"
"Impossible"
"Then a bad soul necessarily rules and manages badly while a good one does all these things well".
Socrates goes on to say, "Then the just soul and the just man will have a good life, and the unjust man a bad one". Thrasymacus says that it is more profitable to live an unjust life. This is true depending on what definition you give to profitable. Is it only wealth and power? Or is it your soul's virtues? To describe this a little further, say a man has stolen money from his business partner all the years they have been in business, he lives a wealthier life on earth while his partner who would be the more just man lives a less wealthy life because he has less money than he actually earned. In this situation it is more profitable to be unjust. However it would not be more profitable if the just man were to find out that his partner was stealing the money. If a person only views profitability as wealth and power then does justive even have a place in that situation? Because if that is a person's only measure of 'good life' then gaining by dishonesty would not be considered wrong. Much of the time it tends to be unjust actions that brings power to people. Those people in power tend to come up a lot in Socrates' arguments. At the beginning I quoted that a bad soul rules badly and a good soul rules well. It seems true that a good soul would have a better shot at ruling well, while a bad soul would do unjust acts towards his people and rule badly because of that, but in the world of politics, can a just man get and maintain power? What Thrasymacus says about it being more profitable to be unjust seems true, but if we go back and look at the very beginning when Socrates was talking to Cephalus about old age we see that maybe it is only profitable for a short time. Cephalus says that "when a man comes near to the realization that he will be making an end, fear and care enter him for things to which he gave no thought before. The tales told about what is in Hade--that the one who has done unjust deeds here must pay the penalty there..."

It may be true that justive is one of those virtues that cannot be taught. In thinking about this, i started wondering if maybe some ideas are born inside of us from the very beginning. I dont know of anyone that is happier when they acquired something unjustly. At the time that someone commits an unjust act and receives fortune from it they may be content fr a time, but at some point it is human nature to fear what will happen when we die or fear that we will lose what we have gotten. At the same time, not all people are the same. Some people have no feelings or knowledge of right or wrong or very different ideas than everybody else has. Some people are taight by their familes to hate and harm others. Some are taight that whatever you have to do to get ahead is ok. So, whether justice can be taught or not, the opposite definitely can be taught.