a polar opposition between mind and body. At the language level, the mental properties are logical negations (in the Aristotelian sense) of the physical properties. So they belong, in accordance with the concept of category, to the same logical types, given that the expressions that are used for the descriptions of mental events are always mere negatives of the expressions used for the descriptions of material events. Ryle then says that such use implies a 'categorical mistake' for the descriptions of mental events that do not properly belong to the categories used for describing the corporeal events. Hence, 'mind' and 'matter' cannot be the polar opposites that Dualism suggests. Ryle writes that this would be comparable to claiming that "She came home in floods of tears" and "She came home in a sedan chair" (from the sentence "Miss Bolo came home in a flood of tears and a sedan chair," a zeugmatic sentence from Dickens) to be polar opposites. Such mistakes are, from the Rylean standpoint, the dogma of the mental ghost in the corporeal machine. Then, dualist doctrines are mythic in an analytical sense. Antecedents Ryle builds on the work of philosophers Ludwig Wittgenstein and Arthur Schopenhauer, among others. According to Bryan Magee, the central thesis of Concept of Mind and the essentials of its subsidiary theses were derived from Schopenhauer, whose works Ryle had read as a student, then largely forgotten. Ryle, who believed that he had expounded an original theory, did not realize what he had done until someone pointed it out to him after the book was published. Reception Ryle has been characterized as an "ordinary language" philosopher, for which the book's style of writing has attracted comment. Stuart Hampshire remarked in a review in Mind that:There is only one property which I can discover to be common to Professor Ryle and Immanuel Kant; in both cases the style is the philosopher - as Kant thought and wrote in dichotomies, Professor Ryle writes in epigrams. There are many passages in which the argument simply consists of a succession of epigrams, which do indeed effectively explode on impact, shattering conventional trains of thought, but which, like most epigrams, leave behind among the debris in the reader's mind a trail of timid doubts and qualifications.John Searle, who has often said that no great work of philosophy contains many footnotes and that philosophical quality varies inversely with the number