This is one of the more profound episodes in the Doctor Who series, straying a bit far from the usual melodrama. It is greatly ironic that the Doctor saves the day by fuelling the dalek with his own hatred, for he doesn't really believe in his own goodness, let alone in the dalek's. The only silver lining is that, in the end, the Doctor actually TRIED to help the monster, believing even for a moment that it could contain goodness. That is Clara's ultimate conclusion.
Review of Into the Dalek
