A work of art is a form that articulates forces, making them intelligible.
Art is the attention we pay to the wholeness of the world.
Something of the previous state, however, survives every change. This is called in the language of cybernetics (which took it form the language of machines) feedback, the advantages of learning from experience and of having developed reflexes.
Art is always the replacement of indifference by attention.
I never intended to be a teacher. I just like going to school and learning things.
In curved Einsteinian space we are at all times, technically, looking at the back of our own head.