As Eric Weitz argues, the Weimar Republic (1919-1933) was not responsible for the Reich; it was a democratic, socially aware and progressive government, way ahead of many other European governments in its introduction of workers' rights, public housing, unemployment benefit and suffrage for women.

The Sheldonian Theatre in Oxford is an astonishing building, designed by Christopher Wren. Its painted ceiling has just been restored so that the darkish miasma that was Robert Streeter's original allegory of truth and light striking the university is now bright with playful cherubs and lustrous clouds.

I have worshipped Berlin from the day I read 'Two Concepts of Liberty' in South Africa. It seemed to make it respectable to be a liberal.

DeLillo has said that he no longer feels a compulsion to write long, compendious books. In his later years, Saul Bellow said something similar. DeLillo, of course, has written very long in the past, notably with the 850-page Underworld (1997), and his story has been America.

'The Cauliflower' is full of these bizarre anecdotes, some of them petty, others moving or whimsical, as its many characters try to make sense of the universe in which they live - a universe strange, febrile, and utterly unique.

My brother and I were brought up sort of thinking that we were English. I remember hearing the poet Roy Campbell on the radio and being quite shocked that he had a South African accent. I didn't know there were any South African poets.

My own interest in Kafka's letter came about when I was writing an article on Peter Ginz, the boy novelist held in Terezin, not far from Prague, and exterminated in Auschwitz by the Nazis. The Ginz family were from more or less the same milieu as the Kafkas.

The great thing about the public is that they're quite capable of believing two absolutely contrary views at the same time.

I grew up reading Updike. I remember being alarmed to find that he had published short stories by the time he was 22. I think 'Pigeon Feathers' was the first collection of stories I read. Only much later did I discover his non-fiction reviewing and art criticism.

It's a strange failure of the literary world that Updike never quite received his due. Despite winning two Pulitzers and two National Book Awards and countless other awards and honours, he was denied the Nobel.

A good novel is something that challenges perception, that allows you to see the world anew through a different point of view - something that genre fiction doesn't do, although it sells more because it doesn't disturb people's innate sense of what a novel should be about. Often, people want characters to be nice, for example.

There was loose talk of Enron management practices and reminders of a scandal at the University of Toronto, when a big donor corporation, Eli Lilly, was said to have vetoed the appointment of an academic who doubted the effectiveness of Prozac.

It is uncomfortable to be reminded that the Catholic church only removed the reference to 'perfidious Jews' from the Good Friday liturgy in 1960.

I'm not an especially male novelist, but I think men are better at writing about men, and the same is true for women. Reading Saul Bellow is a revelation, but he can't write women. There are exceptions, like Marilynne Robinson's 'Gilead,' but generally, I think it's true.

In the new artisan coffee movement, Jeremy Challender, a 32-year-old Australian who is one of the founders of Prufrock Coffee, explains precision is everything for the barista. Jeremy is able to analyse his coffee with the benefit of an app on his phone.

You can't believe anything that's written in an historical novel, and yet the author's job is always to create a believable world that readers can enter. It's especially so, I think, for writers of historical fiction.