Christianity is the only religion on earth that has felt that omnipotence made God incomplete. Christianity alone has felt that God, to be wholly God, must have been a rebel as well as a king. Alone of all creeds, Christianity has added courage to the virtues of the Creator. For the only courage worth calling courage must necessarily mean that the soul passes a breaking point and does not break.
G.K.Chesterton, from Orthodoxy (1908)