We value great art most fundamentally not because the art as product enhances our lives but because it embodies a performance, a rising to artistic challenge. We value human lives well lived not for the completed narrative, as if fiction would do as well, but because they too embody a performance: a rising to the challenge of having a life to lead. The final value of our lives is adverbial, not adjectival—a matter of how we actually lived, not of a label applied to the final result. It is the value of the performance, not anything that is left when the performance is subtracted. It is the value of a brilliant dance or dive when the memories have faded and the ripples died away.