Reductionism in Art and Brain Science” by Erick Kandel, page 115, Zettel 123

Thus what abstract artists contend - and abstract art itself bears out - is that an impression, a sensory stimulation of the retina, is merely a spark for associative recall. The abstract painter does not attempt to provide pictorial detail, but rather to create conditions that enable the viewer to complete the picture based on his or her own unique experience. Legend has it that upon viewing a sunset painted by Turner, a young woman remarked, “I never saw a sunset like that, Mr. Turner,” to which Turner replied, “Don’t you wish you could, madam?”  - Reductionism in Art and Brain Science” by Erick Kandel, page 115, Zettel 123