"Bunyan's perception that righteousness is filthy rags, his scorn for Mr Legality in the village of Morality, his defiance of the Church as the supplanter of religion, his insistence on courage as the virtue of virtues, his estimate of the career of the conventionally respectable and sensible Worldly Wiseman as no better at bottom than the life and death of Mr Badman: all this, expressed by Bunyan in the terms of a tinker's theology, is what Nietzsche has expressed in terms of post-Darwinian, post-Schopenhaurian philosophy; Wagner in terms of polytheistic mythology; and Ibsen in terms of mid-XIX century Parisian dramaturgy."