“In the preface to my first collection of essays, Prepared for the Worst, in 1988, I annexed a thought of Nadine Gordimer’s, to the effect that a serious person should try and write posthumously. By that I took her to mean that one should compose as if the usual constraints — of fashion, commerce, self-censorship, public and perhaps especially intellectual opinion — did not operate. Impossible perhaps to live up to, this admonition and aspiration did possess some muscle, as well as some warning of how it can decay. Then, about a year ago, I was informed by a doctor that I might have as little as another year to live. In consequence, some of my recent articles were written with the full consciousness that they may be my very last. Sobering in one way and exhilarating in another, this practice can obviously never become perfected. But it has given me a more vivid idea of what makes life worth living, and defending.”