Digression is my passion. I love telling the main stories, but in some ways, what I love most is using those narratives as a way of stringing together the interesting stories that people have kind of forgotten, and that are kind of surprising. The problem is, how do you pare stories away so that the book doesn't become a distracting jumble of material, and readers lose focus? In my experience, there's really only one way to do that. I pack it all in with the rough draft, then count on myself and my trusted readers to tell me what's good and what's not good.

The intermittent depression that had shadowed him throughout his adult life was about to envelop him once again.

I'm very perverse. If someone tells me I have to read a book, I'm instantly disinclined to do so.

Germans grew reluctant to stay in communal ski lodges, fearing they might talk in their sleep. They postponed surgeries because of the lip-loosening effects of anesthetic. Dreams reflected the ambient anxiety. One German dreamed that an SA man came to his home and opened the door to his oven, which then repeated every negative remark the household had made against the government.

Place has always been important to me, and one thing today's Chicago exudes, as it did in 1893, is a sense of place. I fell in love with the city, the people I encountered, and above all the lake and its moods, which shift so readily from season to season, day to day, even hour to hour.

Hitler was such an anomalous character - he was so over-the-top chaotic in his approach to statesmanship, his manner and in the violence which overwhelmed the country initially. I think diplomats around the world... felt like something like that simply would not be tolerated by the people of Germany.

Time lost can never be recovered...and this should be written in flaming letters everywhere.