The _Iliad_ and the _Odyssey_ are only “The Three Bears” upon a larger scale. Just as the life of a man is only the fission of two amœbas on a larger scale. _Cui non dictus Hylas puer et Latonia Delos_? That was no argument against telling it again, but rather for repeating it. So people look out in the newspapers for what they know rather than for what they do not know, and the better they know it the more interested they are to see it in print and, as a general rule, unless they get what they expect—or think they know already—they are angry. This tendency of our nature culminates in the well-known lines repeated for ever and ever: The battle of the Nile I was there all the while; I was there all the while At the battle of the Nile. The battle of . . . And so on ad lib. Even this will please very young children. As they grow older they want to hear about nothing but “The Three Bears.” As they mature still further they want the greater invention and freer play of fancy manifested by such people as Homer and our west-end upholsterers, beyond which there is no liberty, but only eccentricity and extravagance. So it is with all fashion. Fashions change, but not radically except after convulsion and, even then, the change is more apparent than real, the older fashions continually coming back as new ones. So it is not only as regards choice of subject but also as regards treatment of subject within the limits of the work itself, after the subject is chosen. No matter whether the utterance of a man’s inner mind is attempted by way of words, painting, or music, the same principle underlies all these three arts and, of course, also those arts that are akin to them. In each case a man should have but one subject easily recognisable as the main motive, and in each case he must develop, treat and illustrate this by means of episodes and details that are neither so alien to the subject as to appear lugged in by the heels, nor yet so germane to it as to be identical. The treatment grows out of the subject as the family from the parents and the race from the family—each new-born member being the same and yet not the same with those that have preceded him. So it is with all the arts and all the sciences—they flourish best by the addition of but little new at a time in comparison with the old. And so, lastly, it is with the _ars artium_ itself, that art of arts and science of sciences, that guild of arts and crafts which is comprised within each one of us, I mean our bodies. In the detail they are nourished from day to day by food which must not be too alien from past food or from the body itself, nor yet too germane to either; and in the gross, that is to say, in the history of the development of a race or species, the evolution is admittedly for the most part exceedingly gradual, by means of many generations, as it were, of episodes that are kindred to and yet not identical with the subject.