Every man that ever lived craved perfect happiness, the detective poignantly reflected. But how can we have it when we know we’re going to die? Each joy was clouded by the knowledge it would end. And so nature had implanted in us a desire for something unattainable? No. It couldn’t be. It makes no sense. Every other striving implanted by nature had a corresponding object that wasn’t a phantom. Why this exception? the detective reasoned. It was nature making hunger when there wasn’t any food. We continue. We go on. Thus death proved life.