What quality is shared by all objects that provoke our aesthetic emotions? Only one answer seems possibleโ significant form. In each, lines and colors combined in a particular way; certain forms and relations of forms, stir our aesthetic emotions. These relations and combinations of lines and colors, these aesthetically moving forms, I call โSignificant Formโ; and โSignificant Formโ is the one quality common to all works of visual art.
Clive Bell