If you ever again turn on your radio and hear someone who may be in distress and need your help, you answer. You are at peace here, you have no excuse not to.
I think I will manage well enough on my own. I am not yet twenty, and this year past I have led an army. If you spent twenty years in training a boy, either you are not suited to teaching, or he has no aptitude and you failed to see it and find some better occupation for him.