Everyone knows that the only emotion that is fully developed in a boy of fourteen is the emotion of loyalty and honour. For that very reason it is so dangerous. By appealing to it, you can do almost anything you choose; you can suppress the expression of all those emotions - particularly the sexual - which are still undeveloped; like a modern dictator you can defeat almost any opposition from other parts of the psyche. But if you do, if you deny these other emotions their expression and development...they will go backward, for human nature can never stay still. They will, like all things that are shut up, go bad on you.

W H Auden, from 'The old school'