Discipline, with love, firmness and self-control, is an essential part of child-rearing. The child whose parents exercise no discipline is not well prepared to live and work in a world where they cannot be the centre of attention all the time. To be a disciple is to be a learner: learning from parents and peers, teachers and trainers, how to relate and cooperate with others to produce a harmonious and productive community. Of course, some of that training may be wrong and therefore hurtful; some may be inadequate and therefore wasteful.