How much does a Grecian Urn?

Whether it's the medication or the cancer, I tend to fall asleep very rapidly and, just as suddenly, snap awake. When I wake, I sometimes find myself moving my hands or somehow in the middle of some task.
This morning, I had dozed off when a voice woke me. Don't worry - I'm sure it was internal in origin - I'm not that far gone. It was quoting Keats and I've put down what I remember it saying rather than going to check the actual quotation


Beauty is truth, truth beauty,
That is all ye know on earth
And all ye need to know