All these observations are just, and fully confirm the fact that natural beauty is simply a _stimulus_ to æsthetic reproduction, which presupposes previous production. Without the previous æsthetic intuitions of the imagination, nature cannot awaken any at all. As regards natural beauty, man is like the mythical Narcissus at the fountain. Leopardi said that natural beauty is "rare, scattered, and fugitive": it is imperfect, equivocal, variable. Each refers the natural fact to the expression in his mind. One artist is thrown into transports by a smiling landscape, another by a rag-shop, another by the pretty face of a young girl, another by the squalid countenance of an old rascal. Perhaps the first will say that the rag-shop and the ugly face of the old rascal are _repulsive_; the second, that the smiling landscape and the face of the young girl are _insipid._ They may dispute for ever; but they will never agree, save when they are supplied with a sufficient dose of æsthetic knowledge to enable them to recognize that both are right. _Artificial_ beauty, created by man, supplies an aid that is far more ductile and efficacious. [Sidenote: _Mixed beauty._] In addition to these two classes, æstheticians also sometimes talk in their treatises of a _mixed_ beauty. A mixture of what? Precisely of natural and artificial. Whoever fixes and externalizes, operates with natural data which he does not create but combines and transforms. In this sense, every artificial product is a mixture of nature and artifice; and there would be no occasion to speak of a mixed beauty, as of a special category. But it sometimes happens that combinations already given in nature can be used a great deal more than in others; as, for instance, when we design a beautiful garden and include in our design groups of trees or ponds already in place. On other occasions externalization is limited by the impossibility of producing certain effects artificially. Thus we can mix colouring matters, but we cannot create a powerful voice or a face and figure appropriate to this or that character in a play. We must therefore seek them among already existing things, and make use of them when found. When, therefore, we employ a great number of combinations already existing in nature, such as we should not be able to produce artificially if they did not exist, the resulting fact is called _mixed_ beauty. [Sidenote: _Writings._]