Impatience.—There is a certain degree of impatience in men of thought and action, which in cases of failure at once drives them to the opposite camp, induces them to take a great interest in it, and to give themselves up to new undertakings—until here again the slowness of their success drives them away. Thus they rove about, like so many reckless adventurers, through the practices of many kingdoms and natures; and in the end, as the result of their wide knowledge of men and things, acquired by their unheard of travel and practice, and with a certain moderation of their craving, they become powerful practical men. Hence a defect in character may become the school of genius.