For the greater the work which a man does for the future, the less will he be appreciated by his contemporaries. His struggle will accordingly be all the more severe, and his success all the rarer. When, in the course of centuries, such a man appears who is blessed with success then, towards the end of his days, he may have a faint prevision of his future fame. But such great men are only the Marathon runners of history. The laurels of contemporary fame are only for the brow of the dying hero.