The distinctness of the analysis may indeed be so great as to prevent the synthesis; we may so entirely pass to the suggested object, that our pleasure will be embodied in the memory of that, while the suggestive sensation will be overlooked, and the expressiveness of the present object will fail to make it beautiful. Thus the mementos of a lost friend do not become beautiful by virtue of the sentimental associations which may make them precious. The value is confined to the images of the memory; they are too clear to let any of that value escape and diffuse itself over the rest of our consciousness, and beautify the objects which we actually behold. We say explicitly: I value this trifle for its associations. And so long as this division continues, the worth of the thing is not for us aesthetic. But a little dimming of our memory will often make it so. Let the images of the past fade, let them remain simply as a halo and suggestion of happiness hanging about a scene; then this scene, however empty and uninteresting in itself, will have a deep and intimate charm; we shall be pleased by its very vulgarity. We shall not confess so readily that we value the place for its associations; we shall rather say: I am fond of this landscape; it has for me an ineffable attraction. The treasures of the memory have been melted and dissolved, and are now gilding the object that supplants them; they are giving this object expression. Expression then differs from material or formal value only as habit differs from instinct -- in its origin. Physiologically, they are both pleasurable radiations of a given stimulus; mentally, they are both values incorporated in an object. But an observer, looking at the mind historically, sees in the one case the survival of an experience, in the other the reaction of an innate disposition. This experience, moreover, is generally rememberable, and then the extrinsic source of the charm which expression gives becomes evident even to the consciousness in which it arises. A word, for instance, is often beautiful simply by virtue of its meaning and associations; but sometimes this expressive beauty is added to a musical quality in the world itself. In all expression we may thus distinguish two terms: the first is the object actually presented, the word, the image, the expressive thing; the second is the object suggested, the further thought, emotion, or image evoked, the thing expressed.