I question myself when I read a book and seem to be agreeing with everything the author is saying. Either they are not challenging me to think hard or I'm not challenging myself to think hard enough about what I've just read. Either way you look at it, reading books like that, is rarely helpful in forming who you are as a person.
However, this book is different. It is great and different and challenging and inspiring and odd and unique and indifferent and just plain brilliant. So don't pass this book up. Get hooked on Madeleine.