My ethical naturalism sees us as facing the predicament of being social animals without evolved adaptations that make social life easy. The fundamental problem that sparks the ethical project lies in our limited responsiveness to one another. The only way we have to address that problem is through a representative, informed, and engaged conversation.

So my methodological approach is to draw on many different features in highlighting different facets of the novella (and the opera and the film).

Both Proust and Joyce record the ways in which human perspectives can be transformed. In Portrait, Stephen Dedalus is constantly undergoing epiphanies, but their effects are transitory: the new synthetic complex quickly falls apart. Proust's characters, by contrast, often achieve lasting changes of perspective.

The hardest problem of all is to appreciate the facts that the poor nations are - quite reasonably - not going to forgo their development, and that they can only afford to develop by consuming fossil fuels.

Mann is widely recognized as a master of irony and ambiguity, yet it's remarkable how quickly people foreclose options he carefully leaves open. Lots of readers - including eminent critics - jump to conclusions: that Nietzsche's Birth of Tragedy is a central background text, that Aschenbach is an inferior writer, that he's never been attracted by pubescent male beauty before, that he dies of cholera.

Was Mann himself fully aware of all the facets of his irony? Probably not - any more than Shakespeare was fully aware of all the riches subsequent critics have found in his plays.

I intend Deaths in Venice to contribute both to literary criticism and to philosophy. But it's not "strict philosophy" in the sense of arguing for specific theses. As I remark, there's a style of philosophy - present in writers from Plato to Rawls - that invites readers to consider a certain class of phenomena in a new way. In the book, I associate this, in particular, with my good friend, the eminent philosopher of science, Nancy Cartwright, who practices it extremely skilfully.