And when there is a doubting attitude -- "Perhaps my friend or my agent is faithful to me, perhaps not" -- then the fact is made doubtful. Faith can bring a surer and speedier cure than medicine, and both success and failure in life depend very much upon faith. Man rides upon the elephant and controls tigers by the power of faith. The great people of the world, the greatest people, are great more by their faith than by anything else, because mostly great people have been adventurous and at the back of a venture is faith, nothing else.