reason#3, Loving art a moral quality

"...a picture of Titian's, or a Greek statue, or a Greek coin, or a Turner landscape, expresses delight in the perpetual contemplation of a good and perfect thing. That is an entirely moral quality--it is the taste of the angels. And all delight in fine art, and all love of it, resolve themselves into simple love of that which deserves love. That deserving is the quality which we call "loveliness"--(we ought to have an opposite word, hateliness, to be said of the things which deserve to be hated); and it is not an indifferent nor an optional thing whether we love this or that; but it is just the vital function of all our being. What we like determines what we are, and is the sign of what we are; and to teach taste is inevitably to form character." John Ruskin, "Traffic".