Read Mann's notes, which contain precise accounts of cholera and its symptoms, and observe how careful he is throughout his fiction in getting medical details straight - then you might begin to wonder whether cholera is the only candidate for the cause of Aschenbach's death. What results from this, I think, is a deeper appreciation of Mann's brilliance in keeping so many possibilities in play. The ambiguity is even more artful than people have realized.

I think the tone of mockery Heller finds is a part of Mann's irony, but only a part - a brilliant further touch consists in juxtaposing perspectives so that we're led to wonder whether the mockery itself is the last word.

In my current work on global warming, I argue that the only apparent solution to the deep problem of climate change would require very large transfers of wealth from rich nations to poor nations, so that the entire world can make the transition to renewable forms of energy as fast as possible.

After two years of undergraduate study, it was clear that I was bored by the regime of problem-solving required by the Cambridge mathematical tripos. A very sensitive mathematics don recommended that I talk to the historian of astronomy, Michael Hoskin, and the conversation led me to enroll in the History and Philosophy of Science for my final undergraduate year.

Philosophy by showing - including philosophy in literature - does truly valuable work in leading us to new perspectives from which our arguments can then begin. It does so by introducing new synthetic complexes, which we then reflect on from various points of view. When the complexes survive and grow, that initial showing has been philosophically decisive.

Aschenbach is not only a projection of Mann in the obvious ways - same daily routines, author of the works Mann had planned - nor even in sharing his author's aspirations, doubts, and sexual identity. His watchword, "Durchhalten!" [persevere, keep going] could be Mann's own.

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?