"I think therefore I am" we have understood? We all already cited at least once, in a discussion like this without really grasp their meaning. Philosophy, with a capital "P", is the biggest, most exciting, but also more difficult to access the arts. The art of understanding, is difficult to understand (REM) alone. Here the book is clear, concise and detailed. He shows us the outline thoughts of the Great Philosophers, to better address. A book, off-putting at first (like 400 pages of Dante's Divine Comedy) is nevertheless a well stocked book. Obviously, it must REALLY be attracted by the philosophy, how often I walked into a bookstore seeing the great works of Kant, Descartes, Nietzsche or wanting to browse through or even buy them? this book is to redress this. A valuable book for general knowledge and useful for graduates (it takes a little bit to ask to read). I have already been conquered by several works of the same edition, and Philosophy for Dummies reinforces my opinion. The present work should not be considered as absolute truth, but as an adjunct, or an introduction to this art, and after reading. I plunge my Nietzsche's book to better understand and appreciate the advantage to its fair value.