a 1929 letter he declares that the function of each work of art is to provide a distinctive vision of the world, in such a way that this vision becomes comprehensible to others: I’d say that good art means the ability of any one man to pin down in some permanent and intelligible medium a sort of idea of what he sees in Nature that nobody else sees. In other words, to make the other fellow grasp, through skilled selective care in interpretative reproduction or symbolism, some inkling of what only the artist himself could possibly see in the actual objective scene itself.

