Great essays. Some stronger than others. I enjoyed this a lot. I took forever to read it all because, being essays, I just read the odd one here and there as a bedside, or coffee read when I had a few minutes here and there. But this past week or so, really enjoyed reading through the last third of the book to finish it off, having become more intrigued on some of the later essays.
It's a shame that Asimov died in 1992, this book having been published in 1989. The ending, which isn't a spoiler, where he thanks his doctors over the years for being alive, is in hindsight very sad, because they gave him a blood transfusion at one point, giving him the AIDS that would eventually take his life, just 3 years after this book was published. At one point elsewhere in the book he also comments about how he is a youngster relative to Arthur C. Clark (Heinlein having sadly died in 1988), and I was just aghast, because little did he knew, his hopes of old old age, and many years more of writing would not last. We lost a true great in 1992. I was but a child when he died, and would only later discover the glory of his writings, both fiction AND non-fiction, in Grade 8 with his book Nemesis almost a decade after he was already long deceased. Then it wouldn't be until 2011, yet another decade plus later when I read Foundation for the first time. In 2016-ish I then went on to re-read foundation and all the robot stories etc in publication order, starting with The Complete Robot then the robot novels etc. Since THEN, I have really become a true fan.... over 2 decades after his death... And he is still making a massive impact. I now own over 70 of his books and have read MANY!
I should note that Nemesis was the most mature book to that date I had read in grade 8 and teachers were shocked to see me reading it, because it was only in grade 7 that I was getting in trouble a lot for not paying attention and distracting class, getting suspended a lot. Then I discovered Orson Scott Card's Homecoming books in the school library, having judged them literally by their spine and cover art, then the description on the back of the book. It was just after struggling to read those that I read Nemesis while on in in school suspension for 5 days between school work. It was not an easy thing for me at that stage of life to read. I hadn't read much of anything complex besides those 5 Orson Scott Card books which changed my life. I wound up getting a BA English degree with honours, later, as a result of my then found love of reading.