After the success of Buddenbrooks, he married and fathered six children. Yet the surviving diaries tell us of recurrent sexual problems - and of Katia Mann's extremely sympathetic response to them

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.

Using the Adagietto of Mahler's Fifth is one of the touches of pure genius in Visconti's film (even though Mahlerians complain very loudly that the piece has been ruined), since it corresponds perfectly to Aschenbach's yearnings and to his circling walks around Venice.

I take the ethical truths to be the stable elements that emerge out of ethical progress and that are retained under further ethical progress.

To my mind, Death in Venice represents an enormous advance in Mann's literary development, not simply for the commonly appreciated reason that he crafted a superbly supple and elegant style, apparently well suited to the kind of prose Aschenbach is supposed to write.

The amalgam of psychological attitudes we form is the synthetic complex. It may fall apart quite quickly as further reflection or further experience bears on it, and we may revert to our former judgments, feelings and tendencies.

I found a deep kinship between Mahler's recurrent attempts to confront all sides of life and to affirm himself in the face of his own finitude, and Aschenbach's dedication to persevere in the literary evocation of beauty. Exploring this kinship led me to reflect on many of Mahler's songs and symphonies - and particularly his great masterpiece, Das Lied von der Erde. The end result was a way of reading Mann that I hadn't originally anticipated at all.