What I liked in the World Sophie, this is not so much a retrospective of the history of philosophy and great philosophers, which is after all very academic and sometimes boring - in this regard, courses philo, even controversial as those of Onfray, do better work and better enter into the head - the reversal of perspective that is three quarters of the book, when the enigma of arrival mysterious letters and postcards Sophie's father is explained. There are few books in my life that made me feel this reversal, I often compared when, in "1984" by George Orwell, one discovers that the characters that believed to have created a haven away Big Brother were wrong to trust the person who rents them the room they find themselves, it is a similar shock, which makes you dizzy and makes you question yourself on your own instead of drive, and your place in the universe, which is still a high-done! Sophie's World is a challenging, academic reading, which will not suit all readers, but stick to the explanation described above, you will not regret it, guaranteed!