This volume reconstructs Martin Heidegger's lecture course at the University of Marburg in the winter semester of 1924-25, which was devoted to an interpretation of Plato and Aristotle. Published for the first time in German in 1992 as volume 19 of Heidegger's Collected Works, it is a major text not only because of its intrinsic importance as an interpretation of the Greek thinkers, but also because of its close, complementary relationship to Being and Time, composed in the same period. In Plato's Sophist, Heidegger approaches Plato through Aristotle, devoting the first part of the lectures to an extended commentary on Book VI of the Nichomachean Ethics. In a line-by-line interpretation of Plato's later dialogue, the Sophist, Heidegger then takes up the relation of Being and non-being, the ontological problematic that forms the essential link between Greek philosophy and Heidegger's thought.
Martin Heidegger (1889-1976) was a German philosopher whose work is perhaps most readily associated with phenomenology and existentialism, although his thinking should be identified as part of such philosophical movements only with extreme care and qualification. His ideas have exerted a seminal influence on the development of contemporary European philosophy. They have also had an impact far beyond philosophy, for example in architectural theory (see e.g., Sharr 2007), literary criticism (see e.g., Ziarek 1989), theology (see e.g., Caputo 1993), psychotherapy (see e.g., Binswanger 1943/1964, Guignon 1993) and cognitive science (see e.g., Dreyfus 1992, 2008; Wheeler 2005; Kiverstein and Wheeler forthcoming).
Parmenides stated that “beings are” and consequently that non-beings are not. By identifying the ontological meaning of Being with the ontical totality of beings, he restricted and directed the understanding of Being for the Greeks. In Plato's Sophist, the Sophist and his discourse embodies non-beings, both his presence and discourse are an affront to the philosopher and his revealing logos, and thus paradoxically prove that non-beings are also. As such, one is forced to conclude against Parmenides that both beings and non-beings are. In order to explain this situation, Plato and Heidegger need to delve deep into the nature of beings, dialectic, logos, human soul, and fundamentally into the Being of beings and non-beings. For Heidegger, the project is much deeper – as he wants to show how Being appeared to the Greeks and in particular to Plato, to point their limitations, to demonstrate its continuity with what we take for granted today, and mainly to develop his new and radical ontological project. For Plato and Aristotle, in logos we address something as presence in themselves (for example, a direct calling by name) or as something else in relation with (for example, an indirect addressing of something as something else). Thus, Being shows as pure presence or as the possibility of being-together with others. Naming something can never determine what is named in its substantive content; that is, naming or pointing are not properly disclosive logos. However, when addressing something as something, the underlying logos is substantial and disclosive. This co-presence with a pregiven world turns negation (i.e., no/non/not) from a trivial logical denial into a fundamental disclosive and exhibiting logos. Heidegger will later return and expand on negation, nothing, and the Being of non-beings - particularly in his professorship address “What is Metaphysics?”. The being-together and co-presence will be elaborated at length in “Being in Time” a few years later - as the phenomenon of Being-in in the antecedent uncoverdness of the world (i.e., being-in-the-world). Since for Heidegger “Aristotle was not followed by anyone greater”, was more clear, more radical, more scientific, wrote systematic philosophy, and completed Plato's project – it hermetically makes sense for Heidegger to start and mostly to stay with Aristotle in this book and not directly with Plato. The book is packed with ancient Greek words and sentences – far more than any other book I read. There is a glossary at the end, however the reading is still difficult and slow because of this.
Heidegger says it is merely a "surmise" that Plato developed his approach to potential (δύναμις) under the guidance of Aristotle's early investigations, but it seems to underpin his reading of the Sophist from beginning to end. He begins with a meticulous analysis of small sections of Aristotle's Ethics and Metaphysics to "lay the ground" for the Sophist -- but in laying the ground he also indicates his destination. It is extremely easy to lose the forest for the trees here, but Heidegger's primary concern is the relation between truth and language. This relationship turns out to be prior to questions of ontology, but it is through an examination of how we speak and think about being and non-being (the subject of the Sophist) that the relationship between truth and language is revealed, an examination that begins with the pre-Socratics, develops through Plato, and culminates in Aristotle.
Heidegger's analysis reminds me of the way an archeologist uncovers an artifact in the desert, by brushing away the sand, grain by grain. His language is technical and difficult, but so careful. Knowledge of Attic Greek is pretty much mandatory here. Heidegger usually provides a translation when he quotes the Greek text, but not always, and he translates loosely to emphasize his interpretation. If you can read some Greek and have a basic familiarity with Heidegger's style, give it a shot. This is close reading at its finest.
Excellent Commentary, but more difficult than any of the others. If you are going to do Heidegger have your Liddell and Scott Greek Lexicon at your elbow. You have been warned... I should add that there is also a bare-bone 'Glossary of Greek Terms' in this book that employs 'Heidegger's own terms as much as possible.' All Greek glossaries should contain transliterations for the Greekless reader. This one doesn't.
Heidegger's interpretive PRINCIPLES seem very questionable to me, but that does not nullify every thing he says. On the contrary it is a very insightful reading of a notoriously difficult dialogue of Plato's, even if the interpretation is occasionally forced. Regardless of whether the orientation by Aristotle really helps one read the Sophist correctly, that exposition of Nicomachen Ethics VI in and of itself is very, very good.
Read as a guide to the Sophist; just read his personalized remark-comments in the context reading of western history and raising the question that matters.