‘To the principle I have laid down, that the idea of beauty in each species of beings is an invariable one, it may be objected,’ he says, ‘that in every particular species there are various central forms, which are separate and distinct from each other, and yet are undeniably beautiful; that in the human figure, for instance, the beauty of Hercules is one, of the Gladiator another, of the Apollo another, which makes so many different ideas of beauty. It is true, indeed, that these figures are each perfect in their kind, though of different characters and proportions; but still none of them is the representation of an individual, but of a class. And as there is one general form, which, as I have said, belongs to the human kind at large, so in each of these classes there is one common idea which is the abstract of the various individual forms belonging to that class. Thus, though the forms of childhood and age differ exceedingly, there is a common form in childhood, and a common form in age, which is the more perfect as it is remote from all peculiarities. But I must add further, that though the most perfect forms of each of the general divisions of the human figure are ideal, and superior to any individual form of that class; yet the highest perfection of the human figure is not to be found in any of them. It is not in the Hercules, nor in the Gladiator, nor in the Apollo; but in that form which is taken from all, and which partakes equally of the activity of the Gladiator, of the delicacy of the Apollo, and of the muscular strength of the Hercules. For perfect beauty in any species must combine all the characters which are beautiful in that species. It cannot consist in any one to the exclusion of the rest: no one, therefore, must be predominant, that no one may be deficient.’—Vol. II. p. 64.