Aesthetics and theory of painting

Aesthetics is the study of art and beauty; it was an important issue for such 18th and 19th century philosophers as Kant or Hegel. Classical philosophers like Plato and Aristotle also theorized about art and painting in particular; Plato disregarded painters (as well as sculptors) in his philosophical system; he maintained that painting cannot depict the truth—it is a copy of reality (a shadow of the world of ideas) and is nothing but a craft, similar to shoemaking or iron casting. By the time of Leonardo painting had become a closer representation of the truth than painting was in Ancient Greece. Leonardo da Vinci, on the contrary, said that "Pittura est cousa mentale" (painting is a thing of the mind). Kant distinguished between Beauty and the Sublime, in terms that clearly gave priority to the former. Although he did not refer particularly to painting, this concept was taken up by painters such as Turner and Caspar David Friedrich.