The Ministry of Magic has always considered the education of young witches and wizards to be of vital importance. The rare gifts with which you were born may come to nothing if not nurtured and honed by careful instruction. The ancient skills unique to the wizarding community must be passed down the generations lest we lose them for ever. The treasure trove of magical knowledge amassed by our ancestors must be guarded, replenished and polished by those who have been called to the noble profession of teaching."