Morality and the arts As a writer (Poet, Essayist), I do aspire to and admire Midgley's wise words.
Art and literalism are always creating something new with something old. This is oft how the mind works too, with old memories being used to reference new objects. So the chair you see is the chair you saw and the chair new as it is at the same time, and that is the most sublime look at the chair, the most artistic perspective one can take, the existential gaze.
To go even further one need only to use property addition or subtraction, to create the abstract within linguistic or artistic bounds.
As I have looked and looked at nature, I have come up with less and less to be poetic about. Been there done that. But if you have the existential gaze, as mentioned above that gaze allows one to know that they can always go back to the filled canvas and create a new look from an old look.
My theory of infinite variation makes the potential creativity one can exhume from the world of phenomena, boundless, and the existential gaze is all that is required for artistic prowess to run over that world.
Morality is not often like this, as some laws are set in stone. But any person that works in the legal system knows the minor yet profuse changes in laws that takes place all the time.