[Thomas] Carlyle believed that every man has a special duty to do in this world. If he had been asked what especially he conceived his own duty to be, he would have said that it was to force men to realize once more that the world was actually governed by a just God; that the old familiar story, acknowledged everywhere in words on Sundays and disregarded or openly denied on week-days, was, after all, true. His writings, every one of them, ... were to this same purpose and on this same text -- that truth must be spoken and justice must be done; on any other conditions, no real commonwealth, no common welfare, is permitted or possible.