The Parable of the Two Brothers.

There once was a man who had two sons. As they grew up one of the sons went away to live on his own without his father. The other son learnt all his father taught him. He taught his son he would punish him very badly if he dared to ignore his teachings such as not to kill another man. The son who lives on his own decided he did not wish to be killed and deiced that it was wrong to kill others because he did not think they either would want to die. The two brothers were reunited when the father died. The son who stayed no longer feared his father's punishment and so killed many people. He was later arrested and put in prison. The son who decided that killing is wrong because he himself did not wish it and did not fear his father's punishment did not kill and lived a good life.

Of the two brothers, who is the moral one?