Suppose we take the man of striking thoughts and withal no sense of fitness--none of the judgment about them which society has. He will go through a mighty host of discoveries every hour. The very eccentricity of his imaginations will only appeal to him for the greater admiration. He will bring his most chimerical schemes out and air them with the same assurance with which the real inventor exhibits his. But such a man is not pronounced a genius. If his ravings about this and that are harmless, we smile and let him talk; but if his lack of judgment extend to things of grave import, or be accompanied by equal illusions regarding himself and society in other relationships, then we classify his case and put him into the proper ward for the insane. Two of the commonest forms of such impairment of judgment are seen in the victims of "fixed ideas" on the one hand, and the _exaltes_ on the other. These men have no true sense of values, no way of selecting the fit combinations of imagination from the unfit; and even though some transcendently true and original thought were to flit through the diseased mind of such a one, it would go as it came, and the world would wait for a man with a sense of fitness to arise and rediscover it. The other class, the _exaltes_, are somewhat the reverse; the illusion of personal greatness is so strong that their thoughts seem to them infallible and their persons divine. Men of such perversions of judgment are common among us. We all know the man who seems to be full of rich and varied thought, who holds us sometimes by the power of his conceptions or the beauty of his creations, but in whose thought we yet find some incongruity, some eminently unfit element, some grotesque application, some elevation or depression from the level of commonplace truth, some ugly strain in the aesthetic impression. The man himself does not know it, and that is the reason he includes it. His sense of fitness is dwarfed or paralyzed. We in the community come to regret that he is so "visionary," with all his talent; so we accommodate ourselves to his unfruitfulness, and at the best only expect an occasional hour's entertainment under the spell of his presence. This certainly is not the man to produce a world movement. Most of the men we call "cranks" are of this type. They are essentially lacking in judgment, and the popular estimate of them is exactly right.