_Theory of Unity in Variety._--Evidently we must seek elsewhere than in utility the dwelling-place of beauty. The secret of her tabernacle is not there. Let us see, then, if _unity in variety_ may not be, as some affirm, the principle of the beautiful. The intellect demands a general unity, as, _e. g._, in a piece of music, a painting, or a play, and is not satisfied unless it can perceive such unity. The parts must be not only connected but related, and that relation must be obvious. At the same time the sensibility demands variety, as _e. g._, of tone and time in the music, of color and shade in the painting, of expression in both. The same note of a musical instrument continuously produced, or the same color unvaried in the painting, would be intolerable. The due combination of these two principles, unity and variety, say these writers, constitutes what we call beauty in an object. The waving line of Hogarth may be taken as an illustration of this principle. _Objection to this View._--Without entering fully into the discussion of this theory, it may be sufficient to say, that while the principle now named does enter, in some degree into our conception of the beautiful, it can hardly be admitted as the ground and cause, or even as the chief element of beauty. Not every thing is beautiful which presents both unity and variety. Some things, on the other hand, are beautiful which lack this combination. Some colors are beautiful, taken by themselves, and the same is true of certain forms, which, nevertheless, lack the element of variety. In the construction of certain mathematical figures, which please the eye by their symmetry and exactness, we may detect, perhaps, the operation of this principle. On the other hand, it will not account for the pleasure we feel when the eye rests upon a particular color that is agreeable. A bright red pebble, or a bit of stained glass, appears to a child very beautiful. It is the color that is the object of his admiration. We have simple unity but no variety there. On the other hand, in a beautiful sunset we have the greatest variety, but not unity, other than simply a numerical unity. We cannot, on the whole, accept this theory as a complete and satisfactory resolution of the problem of the beautiful, although it is supported by the eminent authority of Cousin, who, while he regards all beauty as ultimately pertaining to the spiritual nature, still finds in the principle, now under consideration, its chief characteristic so far as it assumes external form.