"The Moon" is actually a pretty quick read - as novels go, not that long. Probably just long enough to tell the story. I like it so well that I of course wish it were longer. In the book, it is the Professor who is most clearly the one who has thought it all through. He describes himself as a "rational anarchist."
As I said in my review, my thinking differs from Heinlein. Heinlein himself, like anyone who lives for a time, changed considerably in his own thinking as time went on. However, he undoubtedly was a brilliant thinker and writer, and undoubtedly influenced my own life and thought. I'm most grateful to him for many, many hours of pleasurable entertainment.