To speak of philosophy always excites me, but "What do we mean when we talk about philosophy?". Is the title of the text of Stephen Cazzato that after years of teaching in high schools try to give shape to a discipline encompassing, extremely complex, since it has to do with existence, with the whole. It reads: "philosophy regarding the identification and refinement of weapons logic and dialectic that are the basis of all that is knowable." The author uses an original and exhaustive talk philosophy through the point of view of fifty thinkers. Cleaves the thought of the philosopher from the text and in succession since the index. Nothing is superfluous and unturned, every point of view is explained fully and abundantly adequate to achieve the intended purpose by Cazzato.