And secondly (2) it is to be observed that beautiful objects are themselves, for the most part, organic unities, in this sense, that they are wholes of great complexity, such that the contemplation of any part, by itself, may have no value, and yet that, unless the contemplation of the whole includes the contemplation of that part, it will lose in value. From this it follows that there can be no single criterion of beauty. It will never be true to say: This object owes its beauty _solely_ to the presence of this characteristic; nor yet that: Wherever this characteristic is present, the object must be beautiful. All that can be true is that certain objects are beautiful, _because_ they have certain characteristics, in the sense that they would not be beautiful _unless_ they had them. And it may be possible to find that certain characteristics are more or less universally present in all beautiful objects, and are, in this sense, more or less important conditions of beauty. But it is important to observe that the very qualities, which differentiate one beautiful object from all others, are, if the object be truly beautiful, as _essential_ to its beauty, as those which it has in common with ever so many others. The object would no more have the beauty it has, without its specific qualities, than without those that are generic; and the generic qualities, _by themselves_, would fail, as completely, to give beauty, as those which are specific. =122.= II. It will be remembered that I began this survey of great unmixed goods, by dividing all the greatest goods we know into the two classes of aesthetic enjoyments, on the one hand, and the pleasures of human intercourse or of personal affection, on the other. I postponed the consideration of the latter on the ground that they presented additional complications. In what this additional complication consists, will now be evident; and I have already been obliged to take account of it, in discussing the contribution to value made by true belief. It consists in the fact that in the case of personal affection, the object itself is not _merely_ beautiful, while possessed of little or no intrinsic value, but is itself, in part at least, of great intrinsic value. All the constituents which we have found to be necessary to the most valuable aesthetic enjoyments, namely, appropriate emotion, cognition of truly beautiful qualities, and true belief, are equally necessary here; but here we have the additional fact that the object must be not only truly beautiful, but also truly good in a high degree.