Well, someone on British Royal Family Gossip: Part 42 asked me to start a separate thread about this, so here goes, although I warn said poster I only received the book a week ago and am going through it as fast as I can.
Some intro for those who don't recognise his name: Sir Henry Channon ('Chips") was an American born in Chicago in the late 19th century of moderately well to do parents, who loathed America and adored England and Europe, and emigrated to the UK some time after WWI. His parents were well enough to relieve him of the need to work for a living, and after serving as a communications officer in WWI, he settled down in the UK and became a fixture in London's social circles. He married Lady Honor Guiness, and became one of the most fabled diarsists of the era, hobnobbing with aristos, politicians, people like Alice Keppel (Edward VII's mistress and Camilla Parker-Bowles' great-grandmother), Emerald Cunard, the Churchills, the Astors, etc.
He was there for the Abdication, the lead-up to WWII, and the post-war era. His observations were often caustic and often hilarious, as he describes not only people but stately homes.
As a gent of a certain age, many of those names were familiar to me. I'll do my best to provide background as I move through the book.
The first quote that enchanted me was Chips' reaction, in 1918, just after WWI, of his first few enraptured days in London:
"I am in love with London already, and feel that it is pregnant with my destiny."
Which, of course, it was.