I'm quite pessimistic about climate change. This is an urgent problem, and much of the world is only now waking up to the easiest part of solving - the realization that anthropogenic global warming is real.

Most influential of all is the philosopher Stanley Cavell, and a younger generation of philosophers who have attempted to follow his pioneering work in thinking about literature philosophically.

When I try to outline the history of ethical life, it's sometimes possible to find evidence for a hypothesis about how important transitions actually went. Often, however, that isn't so. There are many facts about human life in the Paleolithic we're never likely to know.

Sometime during the 1990s, when I was teaching philosophy at UCSD, my friend, colleague, and music teacher, Carol Plantamura, discussed the possibility of teaching a course together looking at ways in which various literary works (plays, stories, novels) had been treated as operas, and how different themes emerged in the opera and in its original. One of the pairings we planned to use was Mann's great novella and Britten's opera. Unfortunately, the course was never taught, but the idea remained with me.

Even though I want to expand the number of ways in which skilful ironic play happens, I suspect I'm probably guilty of the same shortcoming - and I hope that, one of these days, someone will claim that my book, while it goes in a salutary expansive direction, doesn't go far enough, that there are assumptions I make that show I've missed aspects of Mann's irony and ambiguity.

I'm very concerned about the increasing distortion of research by the intrusion of the market. Universities are beginning to see science as a means of attracting funds.

Anxieties about ourselves endure. If our proper study is indeed the study of humankind, then it has seemed-and still seems-to many that the study is dangerous. Perhaps we shall find out that we were not what we took ourselves to be. But if the historical development of science has indeed sometimes pricked our vanity, it has not plunged us into an abyss of immorality. Arguably, it has liberated us from misconceptions, and thereby aided us in our moral progress.