It's really really hard to rate a book when its a memoir (or collection of transcribed conversations/lectures in this case) as it is someone telling you about their life, and who are we to say whether we enjoy reading about someone else's stories or not?!! Its a weird thing to do, in my opinion. But hey ho, this was a fascinating insight into a brilliant man who had an incredible thirst for knowledge, passion for learning and curiosity about the world around him. I love to watch videos of Richard Feynman talking as his sheer joy in explaining things is contagious, even when he is explaining why he can't explain something to you (see here for an example). I actually alternated between the audiobook of this and a physical copy and thought that the narrator of the audiobook did a fantastic job in mimicking Richard's vocal mannerisms, and just think it is a shame that he couldn't have told the stories himself.