"A good work of visual art carries a person who is capable of appreciating it out of life into ecstasy: to use art as a means to the emotions of life is to use a telescope of reading the news. You will notice that people who cannot feel pure aesthetic emotions remember pictures by their subjects; whereas people who can, as often as not, have no idea what the subject of a picture is. They have never noticed the representative element, and so when they discuss pictures they talk about the shapes of forms and the relations and quantities of colours. Often they can tell by the quality of a single line whether or not a man is a good artist. They are concerned only with lines and colours, their relations and quantities and qualities; but from these they win an emotion more profound and far more sublime than any that can be given by the description of facts and ideas."
—Clive Bell, Art (1913)