It is a curious fact that the more intellectual a man is the more easily he is deceived. There seems to be something almost incompatible between a high degree of culture and an extended knowledge of men and things, whereas, in the case of people of ordinary calibre, a lack of experience will not necessarily hinder them from properly conducting their affairs; they possess, as it were, an _a priori_ knowledge which is furnished to them by their own nature, and it is precisely the absence of this knowledge that causes the mistakes of the more refined. Even when a man has learned from the teaching of others and through his own experience just what he may expect from men in general, even when he is thoroughly convinced that five sixths of them are so constituted that it is better for him to have nothing at all to do with them, even then, his knowledge is insufficient to preserve him from many false calculations. A presumable wiseacre, for instance, may accidentally be drawn into the society of people with whom he is unacquainted, and be astonished to find that in conversation and manners they are sensible, loyal, and sincere, and, perhaps, intelligent and witty. In that case, Schopenhauer warns him to keep well on his guard, for the reason that Nature is entirely unlike the dramaturge who, when he wishes to create a scoundrel or a simpleton, sets about it so awkwardly that he seems to be standing behind each character in turn, and in disavowing their gestures and words to be warning the audience that one is a ruffian and the other a fool, and that no one is to believe a word that they say. It is not at all in this way that Nature acts: her method is that of Shakespeare and Goethe, in whose plays each person, be he the Devil himself, speaks as he ought to, and is conceived so realistically that he attracts and commands attention. To think, then, that the Devil goes about with horns, and the fool with bells, is to lay one's self open to a continual deception, for, as a rule, our moralist says, men behave very much like the moon or like the hunchback; they show only one side, and even then they have a peculiar talent for making up their faces into a species of mask, which exactly represents _what they ought to be_, and this they assume whenever they wish to be well received. Put not your trust in princes, say some; Schopenhauer's advice is, Put not your trust in masks; and to substantiate his warning he quotes an old proverb, which holds that no matter how vicious a dog may be he can still wag his tail.