Let no man.. despair because he thinks the task too great for him; what man has done man can do, and just in proportion as we extend our aid to those whom we can help, so will those who have already attained be able in their turn to help us. So from the lowest to the highest we who are treading the steps of the path are bound together by one long chain of mutual service, and none need feel neglected or alone, for though sometimes the lower flights of the great staircase may be wreathed in mist, we know that it leads up to happier regions and purer air, where the light is always shining.