278 My Brother Theodore Roosevelt
dred and five, he struggled on through the mazes of the jungle, weak and weary, unselfishly begging his companions to leave him to die, for he felt that his condition endangered the possibility of their escape alive from their difficulties. As in Africa, so in South America his tireless energy, even when weakened by illness, never failed to accomplish his purpose, and not only did he put the "River of Doubt" on the map-a river which from that time forth was called Rio Teodoro, after Theodore Roosevelt, the explorer-but during those suffering, exhausting weeks he never once failed to keep his promise to his publishers, and to write, on the spot, the incidents of each day's adventures. Robert Bridges, of Scribners, has shown me the water-soaked manuscript, written in my brother's own handwriting, of that extraordinary expedition. In several places on the blotched sheets he makes a deprecatory note-" This is not written very clearly; my temperature is 1o5." Such perseverance, such persistence are really superhuman; but perhaps it is also true that the human being must eventually pay the price of what the superman achieves.
Theodore Roosevelt returned from that Brazilian trip a man in whom a secret poison still lurked, and although his wonderful vitality, his magnificent strength of character, mind, and body, seemed at times to restore him to the perfect health of former days, he was never wholly free from recurrent attacks of the terrible jungle fever, which resulted in ill health of various kinds, and finally in his death.
True to his loyal convictions, he was determined to give all the aid possible to the candidates on the Progressive ticket for the election of 1914. His wife writes, August, 1914: "Theodore seems really better, although I scarcely think he will have voice for the three speeches he has planned for the last of the month. I asked him if I could say anything from him about the War, and he simply threw up his hands in despair." This letter was written nine days after the cataclysm of the Great War had broken upon the world. From the beginning he said to his family