But further if we consider the nature of admirable mental qualities, by themselves, it appears that a proper appreciation of them involves a reference to purely material beauty in yet another way. Admirable mental qualities do, if our previous conclusions are correct, consist very largely in an emotional contemplation of beautiful objects; and hence the appreciation of them will consist essentially in the contemplation of such contemplation. It is true that the most valuable appreciation of persons appears to be that which consists in the appreciation of their appreciation of other persons: but even here a reference to material beauty appears to be involved, _both_ in respect of the fact that what is appreciated in the last instance may be the contemplation of what is merely beautiful, _and_ in respect of the fact that the most valuable appreciation of a person appears to _include_ an appreciation of his corporeal expression. Though, therefore, we may admit that the appreciation of a person’s attitude towards other persons, or, to take one instance, the love of love, is far the most valuable good we know, and far more valuable than the mere love of beauty, yet we can only admit this if the first be understood to _include_ the latter, in various degrees of directness. With regard to the question what _are_ the mental qualities of which the cognition is essential to the value of human intercourse, it is plain that they include, in the first place, all those varieties of aesthetic appreciation, which formed our first class of goods. They include, therefore, a great variety of different emotions, each of which is appropriate to some different kind of beauty. But we must now add to these the whole range of emotions, which are appropriate to persons, and which are different from those which are appropriate to mere corporeal beauty. It must also be remembered that just as these emotions have little value in themselves, and as the state of mind in which they exist may have its value greatly heightened, or may entirely lose it and become positively evil in a great degree, according as the cognitions accompanying the emotions are appropriate or inappropriate; so too the appreciation of these emotions, though it may have some value in itself, may yet form part of a whole which has far greater value or no value at all, according as it is or is not accompanied by a perception of the appropriateness of the emotions to their objects. It is obvious, therefore, that the study of what is valuable in human intercourse is a study of immense complexity; and that there may be much human intercourse which has little or no value, or is positively bad. Yet here too, as with the question what is beautiful, there seems no reason to doubt that a reflective judgment will in the main decide correctly both as to what are positive goods and even as to any _great_ differences in value between these goods. In particular, it may be