From Chapter 17 of
Zen and the Art of Motorcycle Maintenance
by Robert M. Pirsig
To reinforce the idea that they already knew what Quality was he developed a routine in which he read four student papers in class and had everyone rank them in estimated order of Quality on a slip of paper. He did the same himself. He collected the slips, tallied them on the blackboard and averaged the rankings for an overall class opinion. Then he would reveal his own rankings, and this would almost always be close to, if not identical with the class average...
At first the classes were excited by this exercise, but as time went on they became bored. What he meant by Quality was obvious. They obviously knew what it was too, and so they lost interest in listening. Their question now was "All right, we know what Quality is. How do we get it?" ...
He singled out aspects of Quality such as unity, vividness, authority, economy, sensitivity, clarity, emphasis, flow, suspense, brilliance, precision, proportion, depth and so on; kept each of these as poorly defined as Quality itself, but demonstrated them by the same class reading techniques. He showed how the aspect of Quality called unity, the hanging-togetherness of a story, could be improved with a technique called an outline...
Now, in answer to that eternal student question, How do I do this? that had frustrated him to the point of resignation, he could reply, "It doesn't make a bit of difference how you do it! Just so it's good!" The reluctant student might ask in class, "But how do we know what's good?" but almost before the question was out of his mouth he would realize the answer had already been supplied. Some other student would usually tell him, "You just see it." If he said, "No, I don't," he'd be told, "Yes, you do. He proved it." The student was finally and completely trapped into making quality judgments for himself. And it was just exactly this and nothing else that taught him to write.