From the introduction of the book "Ansel Adams at 100". I picked up a nice library copy (my 2nd version of the book) for $1 last week at a sale.
"An artist is also a member of art's audience, and as such shares our interests; but finally he is interested in something else. He is interesred in demonstrating to himself, by the authority of his work, that his world is not an illusion, not an invention of the imagination, but rather a real world, of which he is therefore a real part. So if we ask the question, what did Ansel Adams do for us? one useful answer would be: nothing; he did it for himself."
"An artist is also a member of art's audience, and as such shares our interests; but finally he is interested in something else. He is interesred in demonstrating to himself, by the authority of his work, that his world is not an illusion, not an invention of the imagination, but rather a real world, of which he is therefore a real part. So if we ask the question, what did Ansel Adams do for us? one useful answer would be: nothing; he did it for himself."