Moral certainty can deafen people to any truth other than their own.

When you're writing non-fiction, you go as far as you can go, and then ethically you have to stop. You can't go. You can't suppose. You can't imagine. And I think there's something in human nature that wants to finish the story.

To know a man's library is, in some measure, to know a man's mind.

Writing is like bricklaying; you put down one word after another. Sometimes the wall goes up straight and true and sometimes it doesn't and you have to push it down and start again, but you don't stop; it's your trade.

What's wrong with leading the way? We've played that role before, after all. We gave the world the secret ballot... that did so much to raise living standards and improve conditions for workers worldwide. We were a leader in extending to women the right to vote. We were barely a nation when we set the bar for bravery and sacrifice by common soldiers in foreign wars. We grew up out of racism and misogyny and homophobia to become a mostly tolerant, successful multicultural society. We did these great things because we know we are in it together. It is our core value as Australians.

September 11, 2001, revealed heroism in ordinary people who might have gone through their lives never called upon to demonstrate the extent of their courage.

Sydney in the 1960s wasn't the exuberant multicultural metropolis it is today. Out in the city's western reaches, days passed in a sun-struck stupor. In the evenings, families gathered on their verandas waiting for the 'southerly buster' - the thunderstorm that would break the heat and leave the air cool enough to allow sleep.