This book's basic argument is that the Freudian unconscious, far from constituting a radical break with the philosophy of consciousness, is merely the latest exemplar in a heritage of philosophical misunderstanding of the Cartesian Cogito that interprets "I think, therefore I am" as "I represent myself, therefore I am" (in the classic interpretation of Heidegger, one of the targets of this book). According to the author, the certainty of the Cogito...