I would be happy to take credit for all of the wonderful experiences I describe in my novels, but my life isn’t quite that rich. Unfortunately we authors are sometimes forced to use other people’s lives, too.
Besides, I don’t understand people who read a book for pleasure and then ruminate on the book’s ideas. Paper was invented so we wouldn’t have to keep all those thoughts in our heads.
Even the best cook can’t make chicken soup out of his own feet. There aren’t so terribly many ingredients in anyone’s life, less meat than there is on a sparrow. The average person could come up with at most two good novels. Many who think very highly of themselves can’t manage more than a couple of anecdotes.