Martin Luther King Jr. was a prominent leader in the American civil rights movement, known for his powerful speeches and writings. His quotations, filled with passion and wisdom, c...In 1929, Martin Heidegger (1889-1976) published his remarkable book Kant and the Problem of Metaphysics. The Kantbuch, as Heidegger often called it, is regarded by many as a vital supplement to the unfinished second part of Heidegger’s most influential work, Being and Time, which was published two years earlier in 1927.Martin Heidegger's Being and Time has been one of the most challenging books to read that I have ever come across. Not only was it because this was a translation from the original German into English (albeit excellently done by John Macquarrie and Edward Robinson), but because Heidegger's own use of German words and his coining of new terms and phrases were difficult for both German- and ...Course Description: Gadamer described the effect of the publication in 1927 of Martin Heidegger’s Being and Time: “it fell like a bombshell upon Europe.”. Being and Time is indeed one of the most influential contributions to philosophy of the 20 th century. It has earned Heidegger a leading status within 20 th century philosophy, along ...by Martin Heidegger, Martin Haidegger, Martin Haydegger, John Macquarrie, Edward S. Robinson, and Friedrich-Wilhelm von Herrmann. The publication in 1927 of Martin Heidegger's magnum opus, Being and Time, signaled an intellectual event of the first order and had an impact in fields far beyond that of philosophy proper.Being and Time is the 1927 magnum opus of German philosopher Martin Heidegger and a key document of existentialism. Being and Time is among the most influential texts of 20th century philosophy. It had a notable impact on subsequent philosophy, literary theory and many other fields. Though controversial, its stature in intellectual history has been …Heidegger's Being and Time 5 Martin Heidegger, translated into English as Martin Heidegger: An Illustrated Study is helpful. I prefer Otto Pöggeler's Martin Heidegger's Path of Thinking. I cannot really recommend any of the commentaries on Being and Time. I considered ordering Stephen New York: Harper & Row, 1977. Synopsis: On Time and Being charts the so-called “turn” in Martin Heidegger’s philosophy away from his earlier metaphysics in Being and Time to his later thoughts after “the end of philosophy.”. The title lecture, “Time and Being,” shows how Heidegger reconceived both “Being” and “time ... Being There. Heidegger gives two core characteristics of Dasein: (i) Dasein exists : “the essence of Dasein lies in its existence” (p.42). (ii) Dasein is mine : “the Being, whose analysis our task is, is always mine” (p.42). The first, seemingly obvious point, is that Dasein, the Being that is concerned about its Being, can only be ... Martin Heidegger on Being Human An Introduction to Sein und Zeit. Richard Schmitt, New York, Random House, 1969. On Heidegger's Being and Time. Simon Critchley and Reiner Schürmann, edited by Steven Levine, London, Routledge, 2008. Routledge Philosophy Guidebook To Heidegger and Being and Time. Stephen …Although it is sometimes said that Martin Heidegger's later philosophy no longer concerned itself with the theme of authenticity so crucial to Being and Time ( ... Sein und Zeit = Being and Time, Martin Heidegger Being and Time is a 1927 book by the German philosopher Martin Heidegger, in which the author seeks to analyse the concept of Being. The book attempts to revive ontology through an analysis of Dasein, or "being-in-the-world." European Central Bank President Mario Draghi's silver tongue speaks again and markets react, Lockheed Martin (LMT) should benefit from an ongoing need for defense spending and ...Aston Martin is a British luxury car manufacturer known for producing high-quality, high-performance vehicles that exude elegance and style. If you’re in the market for an Aston Ma...Quotations by Martin Heidegger, German Philosopher, Born September 26, 1889. Share with your friends. "Every man is born as many men and dies as a single one." - Martin Heidegger. ... Being and time determine each other reciprocally, but in such a manner that neither can the former - Being - be addressed as something temporal nor can the latter ...A Commentary on Heidegger's Being and Time. New York: Harper and Row, 1970. Heidegger, Martin. Being and Time. 1927. Reprint, New York: Harper and Row, 1962. Krell, David Farrell. Intimations of Mortality: Time, Truth and Finitude in Heidegger's Thinking of Being. University Park: Pennsylvania State University Press, 1986. WILLIAM COONEYA Commentary on Heidegger's Being and Time. New York: Harper and Row, 1970. Heidegger, Martin. Being and Time. 1927. Reprint, New York: Harper and Row, 1962. Krell, David Farrell. Intimations of Mortality: Time, Truth and Finitude in Heidegger's Thinking of Being. University Park: Pennsylvania State University Press, 1986. WILLIAM COONEYBeing and Time. : Martin Heidegger. SUNY Press, Jan 1, 1996 - Philosophy - 487 pages. One of the most important philosophical works of our time--a work that has had tremendous influence on philosophy, literature, and psychology, and has literally changed the intellectual map of the modern world.This book, ten years in the making, is the first factual and conceptual history of Martin Heidegger's Being and Time (1927), a key twentieth-century text whose background until now has been conspicuously absent. Through painstaking investigation of European archives and private correspondence, Theodore Kisiel provides an unbroken …The remaining chapters examine the core issues of Being and Time, including the question of being, the phenomenology of space, the nature of human being (our relation to others, the importance of moods, the nature of human understanding, language), Heidegger's views on idealism and realism and his position on skepticism and truth, Heidegger's ...Martin Heidegger taught philosophy at Freiburg University (1915–23), Marburg University (1923–8), and again at Freiburg University (1928–45). Early in his career he came under the influence of Edmund Husserl, but he soon broke away to fashion his own philosophy. His most famous work, Sein und Zeit (Being and Time) was published in 1927.Being and Time (German: Sein und Zeit) is the 1927 magnum opus of German philosopher Martin Heidegger and a key document of existentialism. Being and Time is among the most influential texts of 20th century philosophy.Heidegger's Being and Time. An Introduction. , pp. 1 - 12. DOI: https://doi.org/10.1017/CBO9780511808036.003. Publisher: Cambridge University Press. …'Being-in-the-World is a guide to one of the most influential philosophical works of this century; Division I of Part One of Being and Time, where Martin Heidegger works out an original and powerful account of being-in-the-world which he then uses to ground a profound critique of traditional ontology and epistemology. Hubert Dreyfus's ...Being and Time. Hardcover – August 1, 1962. One of the most important philosophical works of our time -- a work that has had tremendous influence on philosophy, literature, and psychology, and has literally changed the intellectual map of the modern world. Book recommendations, author interviews, editors' picks, and more.A s Heidegger makes clear from the untitled, opening page with which Being and Time begins, what is at stake in the book is the question of being. This is the question that Aristotle raised in an ...The Concept of Time: The First Draft of Being and Time (Athlone Contemporary European Thinkers) by Heidegger, Martin and a great selection of related books, ...This book, ten years in the making, is the first factual and conceptual history of Martin Heidegger's Being and Time (1927), a key twentieth-century text whose background until now has been conspicuously absent. Through painstaking investigation of European archives and private correspondence, Theodore Kisiel provides an unbroken …Jul 1, 2009 ... 7 David Krell, Intimations of Mortality, (Penn State Press: University Park, 1986), 29. 8 Martin Heidegger, Being and Time, translated ...Heidegger, and most German phenomenologists (like Hegel), like to squish words together to create whole new words, which can be confusing for nongerman speakers. The Routledge Philosophy Guidebook to Being and Time by Mulhall is useful. It's easy to read and gives an overview of each of the arguments in the text.How to cite “Being and Time” by Martin Heidegger APA citation. Formatted according to the APA Publication Manual 7 th edition. Simply copy it to the References page as is. If you need more information on APA citations check out our APA citation guide or start citing with the BibguruAPA citation generator. Sein und Zeit = Being and Time, Martin Heidegger Being and Time is a 1927 book by the German philosopher Martin Heidegger, in which the author seeks to analyse the concept of Being. The book attempts to revive ontology through an analysis of Dasein, or "being-in-the-world." Oct 12, 2011 · Viewed in relation to Being and Time , the central philosophical theme in these early years is Heidegger's complex critical relationship with Husserl's …Being and Time. Kindle Edition. by Martin Heidegger (Author) Format: Kindle Edition. 4.6 665 ratings. See all formats and editions. Book Description. Editorial Reviews. One of the most important philosophical works of our time--a work that has had tremendous influence on philosophy, literature and psychology, and has literally …Jul 22, 2008 · This is the central question of Martin Heidegger's profoundly important work, in which the great philosopher seeks to explain the basic problems of existence. A central influence on later philosophy, literature, art, and criticism—as well as existentialism and much of postmodern thought—Being and Time forever changed the intellectual map of ... Exploring the Structure of Being and Time as a Face of the World with all the different Meta-levels of Being necessary to be an Emergent Event. In his private notes written in 1936 (now published as GA82), Heidegger enumerates three "fundamental deceptions" at play in Being and Time (1927). The thrust of these deceptions is twofold: that Dasein ...When it comes to touchscreens and in-car entertainment, Aston Martin has not only lagged behind ultra-luxury rivals such as Lamborghini and Bentley, it has trailed lower priced tec... 12. A preliminary sketch of Being-in-the-world, m terms of an orientation towards Being-in as such H. 52 78 13. A founded mode in which Being- is exemplified. Knov.-i.ng the world H. 59 86 III. THE WoRLDHOOO OF Tim WoRLD H. 63 91 1 4· The idea of the worldhood world in general H. 63 91 A. Anagsis of Heidegger, and most German phenomenologists (like Hegel), like to squish words together to create whole new words, which can be confusing for nongerman speakers. The Routledge Philosophy Guidebook to Being and Time by Mulhall is useful. It's easy to read and gives an overview of each of the arguments in the text.Martin Heidegger, Being and Time trans. John Macquarrie and Edward Robinson, Oxford, Blackwell, 1962, p. 401 (hereafter BT in the text) Heidegger identifies our everyday notions of the past, present and future as temporal ecstases, or three features of temporality that stand out from its underlying unity.Heidegger's Being and Time. An Introduction. , pp. 1 - 12. DOI: https://doi.org/10.1017/CBO9780511808036.003. Publisher: Cambridge University Press. Print publication year: 2007. Access options. Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access.4 days ago · The German philosopher Martin Heidegger describes an uncanny unease we may feel when we are bored and searching desperately for distractions. The Danish …“ Being and Time changed the course of philosophy.” —Richard Rorty, New York Times Book Review “Heidegger’s masterwork.” — The Economist "What is the meaning of being?" This is the central question of Martin Heidegger's profoundly important work, in which the great philosopher seeks to explain the basic problems of existence.St. Martin’s Episcopal Church is a historical gem nestled in the heart of a vibrant community. With its rich history dating back centuries, this iconic church has played a signific...Like. “The small are always dependent on the great; they are "small" precisely because they think they are independent. The great thinker is one who can hear what is greatest in the work of other "greats" and who can transform it in an original manner.”. ― Martin Heidegger. tags: nietzche , originality. 106 likes.The first part of Being and Time was devoted to an interpretation of Dasein in terms of temporality, and to an explanation of time as the transcendental horizon for the question …PDF-OBJECTSHeidegger's "Being and Time" and the Possibility of Political Philosophy. Ithaca, NY: Cornell University Press. A commentary on being and time. Heidegger, Martin. (1962). Being and Time, trans. John Macquarrie and Edward Robinson. New York: Harper and Row. Translation of Sein und Zeit, 1927. Heidegger's major work. …Plotinus and Heidegger – one of the greatest Platonists and a philosopher who viewed Platonism as a colossal dead end – have this in common: for them, time is not simply an aspect of change, or a subjective framework for perceiving change. Time is rooted in our very essence, in our concern with our own being. For us, our existence is at ...He merely wants to find out what being as such means, and Being and Time was an attempt at this. He called it a fundamental ontology: a systematic investigation ...Heidegger, Martin - Being and Time [trans. Macquarrie & Robinson ... ... Loading…Martin Heidegger's (1889 -- 1976) "Being and Time" (1927), together with Ludwig Wittgenstein's "Philosophical Investigations" is one of the seminal philosophical works of the Twentieth Century. The work still remains difficult, obscure, and highly controversial. The book, and its author, provoke wildly varying responses.Being and Time. Paperback – 22 July 2008. by Martin Heidegger (Author) 4.6 613 ratings. See all formats and editions. "Being and Time changed the course of philosophy." --Richard Rorty, New York Times Book Review. "Heidegger's masterwork." --The …Mar 7, 2011 · Plotinus and Heidegger – one of the greatest Platonists and a philosopher who viewed Platonism as a colossal dead end – have this in common: for them, time is …Being and Time - Martin Heidegger - Free download as PDF File (.pdf), Text File (.txt) or read online for free. HeideggerMartin Heidegger (1889-1976) Philosopher. Ereignis. Punktmannigfaltigkeit. Welcome to my Heidegger site. It contains information on the German philosopher Martin Heidegger (1889-1976) ... For the time Being Heidegger’s Final Words in Vorläufiges I …A comprehensive analysis of Heidegger's Being & Time.Martin Heidegger was born on 26 September 1889 in Messkirch, a small town in south-west Germany, about 20 miles north of Lake Constance. From 1903 to 1906 he attended the Gymnasium in Konstanz, having secured a scholarship through Conrad Gröber, the Archbishop of Freiburg, who was also from Messkirch. Although he attended classes at the ...Heidegger's "Being and Time" and the Possibility of Political Philosophy. Ithaca, NY: Cornell University Press. A commentary on being and time. Heidegger, Martin. (1962). Being and Time, trans. John Macquarrie and Edward Robinson. New York: Harper and Row. Translation of Sein und Zeit, 1927. Heidegger's major work. …Important Quotes. “For manifestly you have long been aware of what you mean when you use the expression ‘being’. We, however, who used to think we understood it, have now become perplexed.”. (Introduction, Chapter 1, Page 19) This quote from Plato frames the entire text. It indicates the central goal of Being and Time —namely, that it ...On Time and Being charts the so-called "turn" in Martin Heidegger's philosophy away from his earlier metaphysics in Being and Time to his later thoughts after "the end of philosophy." The title lecture, "Time and Being," shows how Heidegger reconceived both "Being" and "time," introducing the new concept of "the event of …Oct 12, 2022 · Heidegger, Martin, 1889-1976. Sein und Zeit, Sein und Zeit (Heidegger, Martin), Ontology, Space and time, Ontologie, Espace et temps, Ontologi, Tid och rum Publisher Dekalb, Ill. : Northern Illinois University Press Collection inlibrary; printdisabled; internetarchivebooks Contributor Internet Archive Language English Martin Heidegger, Joan Stambaugh (Translator) 4.11. 189 ratings14 reviews. Offers insight into the neo-Kantian aspects of Heidegger's early thought as well as revealing his conception of philosophical reflection and the states of time and being. Genres Philosophy Nonfiction. 100 pages, Paperback.Jul 1, 2010 · The publication in 1927 of Martin Heidegger’s magnum opus, Being and Time, signaled an intellectual event of the first order and had an impact in fields far beyond that of philosophy proper. Feb 27, 2024 · Martin Heidegger (1889–1976) was a German philosopher whose work is predominantly associated with existentialism and phenomenology. His most enduring …Martin Heidegger (1889–1976) is considered by many as the founder of existential or hermeneutical phenomenology. Heidegger’s work has been a meeting place at the interstices between Daseinsanalysis (Binswanger 1967; Boss 1963, 1979), continental philosophy of religion (Caputo 1978; Crowe 2006), and existential theology (Tillich 1966; …Being and Time is the 1927 magnum opus of German philosopher Martin Heidegger and a key document of existentialism. Being and Time is among the most influential texts of 20th century philosophy. It had a notable impact on subsequent philosophy, literary theory and many other fields. Though controversial, its stature in intellectual history has been …Martin Heidegger (1889-1976) Alistair MacFarlane considers the being and times of the writer of Being and Time. Martin Heidegger provokes an extreme and polarised response to both his philosophy and his life. He has been hailed as the greatest philosopher of the twentieth century, compared to St Augustine, considered a profound …On the 90th anniversary of his birth, it's worth recalling what the great civil rights activist said about generosity. Ninety years ago, on Jan. 15, 1929, Michael King, Jr. was bor... 4.07. 5,102 ratings124 reviews. A concise introduction to this controversial and important twentieth-c
When it comes to touchscreens and in-car entertainment, Aston Martin has not only lagged behind ultra-luxury rivals such as Lamborghini and Bentley, it has trailed lower priced tec...A Commentary on Heidegger's Being and Time. New York: Harper and Row, 1970. Heidegger, Martin. Being and Time. 1927. Reprint, New York: Harper and Row, 1962. Krell, David Farrell. Intimations of Mortality: Time, Truth and Finitude in Heidegger's Thinking of Being. University Park: Pennsylvania State University Press, 1986. WILLIAM COONEYMartin Heidegger paved the road trod on by the existentialists with the 1927 publication of Being and Time.His encyclopedic knowledge of philosophy from ancient to modern times led him to rethink the most basic concepts underlying our …Summary. There are two translations of Being and Time ( Sein und Zeit ), one by John Macquarrie and Edward Robinson (first published in 1962) and one by Joan Stambaugh (first published in 1996). Both have their merits (the more recent translation is certainly the more readable of the two). For the most part, I have used the older …Oct 14, 2023 ... In this episode, I cover chapter two of the introduction to Martin Heidegger's "Being and Time." Episode Breakdown: Episode 1: ...Martin Heidegger's (1889 -- 1976) "Being and Time" (1927), together with Ludwig Wittgenstein's "Philosophical Investigations" is one of the seminal philosophical works of the Twentieth Century. The work still remains difficult, obscure, and highly controversial. The book, and its author, provoke wildly varying responses.Summary. Last Updated September 5, 2023. In Being and Time, Heidegger attempts to answer the question "What is being?" He tries to do this through studying the concept of dasein , a German word ...Heidegger begins his detailed exposition of Dasein in Being and Time by distinguishing Dasein as a unique entity: “Dasein is an entity which does not just occur among other entities. Rather it is ontically distinguished by the fact that, in its very Being, the Being is an issue for it.” Footnote 1 That “the Being is an issue for it,” he continues, …Being and Time. Paperback – 20 March 2019. by Martin Heidegger (Author), John Macquarrie (Translator), Edward S. Robinson (Translator) 4.6 613 ratings. See all formats and editions. Save 7% on any 2 qualifying items | …Nov 4, 2023 ... In this episode, I cover chapters five and six from part one of Heidegger's "Being and Time." Episode Breakdown: Episode 1: (Introduction) ...In this video, Professor Thorsby gives a lecture on Martin Heidegger's Introduction to Being and Time. The lecture covers the the question of the meaning of...Martin Heidegger, Joan Stambaugh (Translator) 4.11. 189 ratings14 reviews. Offers insight into the neo-Kantian aspects of Heidegger's early thought as well as revealing his conception of philosophical reflection and the states of time and being. Genres Philosophy Nonfiction. 100 pages, Paperback.Being and Time, his first major publication, remains to this day his most influential work. Heidegger and Being and Time introduces and assesses: • Heidegger’s life and the background to Being and Time • The ideas and text of Being and Time • Heidegger’s enduring influence in philosophy and our contem-porary intellectual life“Being and Time changed the course of philosophy.” —Richard Rorty, New York Times Book Review “Heidegger’s masterwork.” —The Economist "What is the meaning of being?" This is the central question of Martin Heidegger's profoundly important work, in which the great philosopher seeks to explain the basic problems of existence.“ Being and Time changed the course of philosophy.” —Richard Rorty, New York Times Book Review “Heidegger’s masterwork.” — The Economist "What is the meaning of being?" This is the central question of Martin Heidegger's profoundly important work, in which the great philosopher seeks to explain the basic problems of existence.This public document was automatically mirrored from PDFy.Original filename: 42700894-Martin-Heidegger-Being-and-Time.pdf URL:...Heidegger, Martin and J. Strambaugh. On Time and Being.New York: Harper & Row, 1977. Synopsis: On Time and Being charts the so-called “turn” in Martin Heidegger’s philosophy away from his earlier metaphysics in Being and Time to his later thoughts after “the end of philosophy.”The title lecture, “Time and Being,” shows how Heidegger …Martin Heidegger. 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 ...Heideggers nalatenschap blijft een belangrijk onderdeel van de moderne filosofische erfenis. Bronnen en meer informatie. Heidegger, Martin. (1962). Being and Time. Vertaling door John Macquarrie en Edward Robinson. Harper & Row. Heidegger, Martin. (1977). The Question Concerning Technology and Other Essays. Vertaling door William …Being and Time. Martin Heidegger. SUNY Press, Jul 1, 2010 - Philosophy - 482 pages. The publication in 1927 of Martin Heidegger’s magnum opus, Being and Time, signaled an...May 6, 2024 · Martin Heidegger (born September 26, 1889, Messkirch, Schwarzwald, Germany—died May 26, 1976, Freiburg im Breisgau, West Germany) was a German philosopher, counted among the main exponents of existentialism. His groundbreaking work in ontology (the philosophical study of being, or existence) and metaphysics determined the course of 20th ... HEIDEGGER’S BEING AND TIME. In Being and Time Heidegger gives an account of the distinctive features of human existence, in an attempt to answer the question of the meaning of being. He finds that underlying all of these features is what he calls ‘original time’. In this clear and straightforward introduction to the text, Paul Gorner ...In the introduction to Being and Time, Martin Heidegger states that he intends to raise the question of the meaning of being, and the first step in raising this question is an examination of human being “as it is proximally and for the most part—in its average everydayness” (in seiner durchschnittlichen Alltäglichkeit). Footnote 1 It turns …Exploring the Structure of Being and Time as a Face of the World with all the different Meta-levels of Being necessary to be an Emergent Event. In his private notes written in 1936 (now published as GA82), Heidegger enumerates three "fundamental deceptions" at play in Being and Time (1927). The thrust of these deceptions is twofold: that Dasein ...In his groundbreaking work Being and Time, Heidegger meticulously presents a variety of interpretations of truth to construct a satisfying epistemological ...Heidegger intended to complete the first division of Being and Time by analyzing how the interplay of the dimensions of time, properly understood, is the horizon for understanding being as such, and not only human being. He did not complete the analysis, however, and much of his work from the mid-1930s forward attempts to examine and reexamine ...He merely wants to find out what being as such means, and Being and Time was an attempt at this. He called it a fundamental ontology: a systematic investigation ...Oct 12, 2011 · Viewed in relation to Being and Time , the central philosophical theme in these early years is Heidegger's complex critical relationship with Husserl's …In Being and Time, Heidegger reexamines, as mentioned above, the human being's sense of its own consciousness. Much of modern Western philosophy has been based on Descartes's idea of duality: that ...A new 2024 translation of Martin Heidegger's major work "Being and Time" (Sein und Zeit), originally published in 1927 in multiple publications. This edition contains a new afterword by the Translator, a timeline of Heidegger's life and works, a philosophic index of core Heideggerian concepts and a guide for terminology across 19th and 20th century Existentialists.A Commentary on Heidegger's Being and Time. New York: Harper and Row, 1970. Heidegger, Martin. Being and Time. 1927. Reprint, New York: Harper and Row, 1962. Krell, David Farrell. Intimations of Mortality: Time, Truth and Finitude in Heidegger's Thinking of Being. University Park: Pennsylvania State University Press, 1986. WILLIAM COONEY In this clear and straightforward introduction to the text, Paul Gorner takes the reader through the work, examining its detail and explaining the sometimes difficult language which Heidegger uses. The topics which he covers include being-in-the-world, being-with, thrownness and projection, truth, authenticity, time and being, and historicity. St. Martin’s Episcopal Church is a historical gem nestled in the heart of a vibrant community. With its rich history dating back centuries, this iconic church has played a signific...The unique intermediary position of Martin Heidegger’s Being and Time (1927) between ontology, transcendental philosophy, phenomenology, existential analysis, and hermeneutics along with the controversial history of its interpretation make an introductory commentary essential. For this 3 rd edition the essays were updated with … 1/ 'to carry something out,' or 'to get it done.'. 2/ 'to provide oneself with something' and. 3/ 'to be concerned about the success of the undertaking'. In contrast to these ontical significations, the ontological expression 'concern' designates - the Being of a possible way of Being-in-the-world. Heidegger famously began a lecture series on Aristotle with this statement: ‘He was born at such and such a time, he worked and he died.’¹ Such is true of all philosophers. What is important about them, their only serious achievement, is their philosophy. Everything else is quite meaningless and trivial.Martin Heidegger. ( 26 September 1889 – 26 May 1976) John W P Phillips. National University of Singapore. Martin Heidegger’s 1927 publication, Sein und Zeit (translated as Being and. Time ... I just spent the last two months doing a deep dive trying to understand Martin Heidegger’s seminal work, Be