Critics who perceive the first level of Mann's irony recognize that the second voice is giving us reasons to be dubious about various aspects of Aschenbach's life and work. But many of them don't appreciate the second level of irony, the one exemplified in setting this narrative voice alongside the more sympathetic one, and inviting us to choose.

So this is my attempt to give a preliminary - probably far too crude - account of how philosophy by showing can really teach us. The attempts we make to work through problems by reasoning always presuppose starting points, and even the most self-critical philosophers adopt some of those starting points simply by picking them up from the social environments in which they grow up.

I was occupied by a range of questions, often different from those fashionable in the professional philosophy of the past half century, that have sometimes troubled philosophers in the past. It's taken me several decades to work out my own philosophical agenda, and it is wide.

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.

I'm often quite gloomy about the prospects for the human future. But, although I have no competence to intervene directly in a political movement, I hope that what I write may, in combination with the suggestions of others, cause a shift in perspective that will inspire a world-wide movement to accept the only solution to climate change. And before it's too late.

The theory of evolution explains to us what our ancestry has been. It does not explain away our worth. Why should we be afraid to learn more about what we are?

First, my frame of reference for the Britten opera shifted. I'd always thought of Britten's approach in Death in Venice as another exploration of the plight of the individual whose aspirations are at odds with those of the surrounding community: his last opera returning to the themes of Peter Grimes. As I read and listened and thought, however, Billy Budd came to seem a more appropriate foil for Death in Venice.