In each generation, a few too many people will feel moved to pen an essay called, inevitably, “Why I Write” or “Why Write?” under which title you’ll find a lot of convoluted, more or less self-regarding reasons and explanations. (I’ve contributed to this genre myself.) Only a few of them are any good* and none of them (including my own) see fit to mention the surest motivation I know, the one I feel deepest within myself, and which, when all is said, done, stripped away—as it is at the moment—seems to be at the truth of the matter for a lot of people, to wit: it’s something to do.