Ethical inquiry has always been motivated by the aim of improving human conduct. It doesn't follow from that that the goal is to produce a complete rule book that would be applicable to all cases.

I read Aschenbach's constant desire to go beyond the works he has already produced to be the counterpart of Mann's deep wish to surpass his previous fiction; sometimes the diaries express this in terms of a dejected judgment that the summit has already been reached.

In ethics, we don't make progress by discovering pre-existent truths; we do so by solving problems.

I'm a pluralist about perspectives on literature. There seem to me to be all sorts of illuminating ways of responding to major literary works, some of them paying considerable attention to context, others applying various theoretical ideas, yet others focusing on details of language, or linking the work to the author's life, or connecting it with other works.

In elaborating how "philosophy by showing" works, and in defending the idea that literature and music can contribute to philosophical "showing", I am also doing something more standardly philosophical. But I view most of the book as an interweaving of philosophy and literary criticism. If that entails a broadening of a standard idea of philosophy, it's a broadening I'd like to see happen.

There's a disciplined erotic component to it, so that the height of sexual contact is the embrace, the modest touch, a relatively chaste kiss. An important passage from the surviving 1942 diary (one I quote in the book) relates this mode of sexual expression to his own life. Mann had returned to his diary for 1927 (one of those he burned) and to his parting from the young man, Klaus Heuser, whom the family had met on holiday and invited to Munich.

In the end, we learn about the most basic philosophical questions - like "How to live?" - from a broad mixture of sources, including literature and philosophy, history and anthropology. These sources can guide our reflections on our own experiences, as we explore and reconsider. Mann contributed to such explorations in a distinctive way, and I hope my book brings that out.