The Mephistopheles of Goethe has often been taken as a symbol of the iconoclastic and Voltairian side of the eighteenth century. The rationalists assailed the traditional forms that imply a superrational realm as mere “prejudice,” and, failing to find in insight a substitute for these discarded forms, they succumbed in turn to the emotionalists. A “reason” that is not grounded in insight will always seem to men intolerably cold and negative and will prove unable to withstand the assault of the primary passions. The reason of a Plato or an Aristotle is on a different footing altogether because, as I have said, it includes an element of inner perception. One may note here that the difficulties of the present subject arise in no small degree from the ambiguities that cluster about the word reason. It may not only mean the imaginative insight[109] of a Plato and the abstract reasoning of a Descartes but is often employed by the classicist himself as a synonym of good sense. Good sense may be defined as a correct perception of the ordinary facts of life and of their relation to one another. It may be of very many grades, corresponding to the infinite diversity of the facts to be perceived. A man may evidently have good sense in dealing with one order of facts, and quite lack it in dealing with some different order of facts. As the result of long observation and experience of a multitude of minute relationships, of the facts that ordinarily follow one another or coexist in some particular field, a man’s knowledge of this field becomes at last, as it were, automatic and unconscious. A sea captain for example acquires at last an intuitive knowledge of the weather, the broker, an intuitive knowledge of stocks. The good sense or practical judgment of the sea captain in his particular calling and of the broker in his is likely to be greater than that of less experienced persons. One cannot, however, assert that a man’s good sense is always in strict ratio to his experience. Some persons seem to have an innate gift for seeing things as they are, others a gift equally innate for seeing things as they are not.