115-491: Martin Heidegger ( / ˈ h aɪ d ɛ ɡ ər , ˈ h aɪ d ɪ ɡ ər / ; German: [ˈmaʁtiːn ˈhaɪdɛɡɐ] ; 26 September 1889 – 26 May 1976) was a German philosopher best known for contributions to phenomenology , hermeneutics , and existentialism . His work covers a wide range of topics including ontology , technology , art , metaphysics , humanism , language and history of philosophy . He
230-425: A linguistic therapy. According to Ludwig Wittgenstein , for instance, philosophy aims at dispelling misunderstandings to which humans are susceptible due to the confusing structure of ordinary language . Phenomenologists , such as Edmund Husserl , characterize philosophy as a "rigorous science" investigating essences . They practice a radical suspension of theoretical assumptions about reality to get back to
345-421: A "hermeneutics of factical life", and his hermeneutical transformation of phenomenology. There is little doubt that Heidegger seized upon Dilthey's concept of hermeneutics. Heidegger's novel ideas about ontology required a gestalt formation, not merely a series of logical arguments, in order to demonstrate his fundamentally new paradigm of thinking, and the hermeneutic circle offered a new and powerful tool for
460-777: A German revolution, and in an article and a speech to the students from the same year he also supported Adolf Hitler. In November 1933, Heidegger signed the Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State . Heidegger resigned from the rectorate in April 1934, but remained a member of the Nazi Party until 1945 even though
575-714: A counter-offer by Marburg. The title of his 1929 inaugural lecture was "What is Metaphysics?" In this year he also published Kant and the Problem of Metaphysics . Heidegger remained at Freiburg im Breisgau for the rest of his life, declining later offers including one from Humboldt University of Berlin . His students at Freiburg included Hannah Arendt, Günther Anders , Hans Jonas , Karl Löwith , Charles Malik , Herbert Marcuse , and Ernst Nolte . Emmanuel Levinas attended his lecture courses during his stay in Freiburg in 1928, as did Jan Patočka in 1933; Patočka in particular
690-545: A doctor diagnoses a disease based on the observed symptoms. Logic also investigates incorrect forms of reasoning. They are called fallacies and are divided into formal and informal fallacies based on whether the source of the error lies only in the form of the argument or also in its content and context. Metaphysics is the study of the most general features of reality , such as existence, objects and their properties , wholes and their parts , space and time , events , and causation . There are disagreements about
805-469: A four-year affair with Hannah Arendt, who was then 19 years old and his student. Like Blochmann, Arendt was Jewish. Heidegger and Arendt agreed to keep the details of the relationship a secret, preserving their letters, but keeping them unavailable. The affair was not widely known until 1995, when Elzbieta Ettinger gained access to the sealed correspondence. Nevertheless, Arendt faced criticism for her association with Heidegger after his election as rector at
920-444: A great variety of methods to arrive at philosophical knowledge. They include conceptual analysis , reliance on common sense and intuitions , use of thought experiments , analysis of ordinary language , description of experience , and critical questioning . Philosophy is related to many other fields, including the sciences, mathematics , business , law , and journalism . It provides an interdisciplinary perspective and studies
1035-702: A metaphysical foundation of ethics. The modern period in Chinese philosophy began in the early 20th century and was shaped by the influence of and reactions to Western philosophy. The emergence of Chinese Marxism —which focused on class struggle , socialism , and communism —resulted in a significant transformation of the political landscape. Another development was the emergence of New Confucianism , which aims to modernize and rethink Confucian teachings to explore their compatibility with democratic ideals and modern science. Traditional Japanese philosophy assimilated and synthesized ideas from different traditions, including
1150-466: A more existentialist dimension to Being and Time . ( Existentialism is a broad philosophical movement largely defined by Jean-Paul Sartre and is not to be confused with Heidegger's technical analysis of the specific existential features of Dasein.) Its central notion is authenticity , which emerges as a problem from the "publicness" built into the existential role of das Man . In Heidegger's own words: In this inconspicuousness and unascertainability,
1265-468: A noticeable growth in the number of female philosophers , but they still remained underrepresented. Arabic–Persian philosophy arose in the early 9th century CE as a response to discussions in the Islamic theological tradition . Its classical period lasted until the 12th century CE and was strongly influenced by ancient Greek philosophers. It employed their ideas to elaborate and interpret the teachings of
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#17327840354371380-460: A part of intellectual history , but it also investigates questions not covered by intellectual history such as whether the theories of past philosophers are true and have remained philosophically relevant. The history of philosophy is primarily concerned with theories based on rational inquiry and argumentation; some historians understand it in a looser sense that includes myths , religious teachings , and proverbial lore. Influential traditions in
1495-473: A series of lectures on Friedrich Nietzsche at Freiburg that presented much of the raw material incorporated in his more established work and thought from this time. These would appear in published form in 1961. This period also marks the beginning of his interest in the " essence of technology" . In the autumn of 1944, Heidegger was drafted into the Volkssturm and assigned to dig anti-tank ditches along
1610-612: A variety of arguments. Deductive arguments are mainly studied by formal logic. An argument is deductively valid if the truth of its premises ensures the truth of its conclusion. Deductively valid arguments follow a rule of inference , like modus ponens , which has the following logical form : " p ; if p then q ; therefore q ". An example is the argument "today is Sunday; if today is Sunday then I don't have to go to work today; therefore I don't have to go to work today". The premises of non-deductive arguments also support their conclusion, although this support does not guarantee that
1725-465: Is "Dasein-with" ( Mitsein ), which he presents as equally primordial with "being-one's self" ( Selbstsein ). Heidegger's term for this existential feature of Dasein is das Man , which is a German pronoun, man , that Heidegger turns into a noun. In English it is usually translated as either "the they" or "the one" (sometimes also capitalized); for, as Heidegger puts it, "By 'others' we do not mean everyone else but me.... They are rather those from whom for
1840-508: Is "Duns Scotus's doctrine of categories and meaning". He attempted to get the (Catholic) philosophy post at the University of Freiburg on 23 June 1916 but failed despite the support of Heinrich Finke [ de ] . Instead, he worked first as an unsalaried Privatdozent then served as a soldier during the final year of World War I . His service was in the last ten months of the war, most of which he spent in meteorological unit on
1955-672: Is "central to Heidegger's philosophy". He accuses the Western philosophical tradition of mistakenly trying to understand being as such as if it were an ultimate entity. Heidegger modifies traditional ontology by focusing instead on the meaning of being . This kind of ontological inquiry, he claims, is required to understand the basis of our understanding, scientific and otherwise. In short, before asking what exists, Heidegger contends that people must first examine what "to exist" even means. In his first major work, Being and Time , Heidegger pursues this ontological inquiry by way of an analysis of
2070-421: Is 'in' the world is the sense of "residing" or "dwelling" in the world. Heidegger provides a few examples: "having to do with something, producing something, attending to something and looking after it, making use of something". Just as 'being-in' does not denote objective, physical enclosedness, so 'world', as Heidegger uses the term, does not denote a universe of physical objects. The world, in Heidegger's sense,
2185-494: Is a combination of different parts and attempts to identify what those parts are. An influential theory in this area claims that knowledge has three components: it is a belief that is justified and true . This theory is controversial and the difficulties associated with it are known as the Gettier problem . Alternative views state that knowledge requires additional components, like the absence of luck; different components, like
2300-510: Is a common issue in relation to the sources of knowledge and the justification they offer. It is based on the idea that beliefs require some kind of reason or evidence to be justified. The problem is that the source of justification may itself be in need of another source of justification. This leads to an infinite regress or circular reasoning . Foundationalists avoid this conclusion by arguing that some sources can provide justification without requiring justification themselves. Another solution
2415-532: Is a matter of taking responsibility for being, that is, the stand that people take with respect to their ultimate projects. It is, in his terms, a matter of taking a properly "resolute" stand on "for-the-sake-of-which". Put differently, the "self" to which one is true in authenticity is not something just "there" to be discovered, but instead is a matter of "on-going narrative construction". Philosopher Philosophy ('love of wisdom' in Ancient Greek )
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#17327840354372530-561: Is a set of essential features shared by all parts of philosophy. Others see only weaker family resemblances or contend that it is merely an empty blanket term. Precise definitions are often only accepted by theorists belonging to a certain philosophical movement and are revisionistic according to Søren Overgaard et al. in that many presumed parts of philosophy would not deserve the title "philosophy" if they were true. Some definitions characterize philosophy in relation to its method, like pure reasoning. Others focus on its topic, for example, as
2645-414: Is a systematic study of general and fundamental questions concerning topics like existence , reason , knowledge , value , mind , and language . It is a rational and critical inquiry that reflects on its own methods and assumptions. Historically, many of the individual sciences , such as physics and psychology , formed part of philosophy. However, they are considered separate academic disciplines in
2760-467: Is also concerned with the moral evaluation of character traits and institutions. It explores what the standards of morality are and how to live a good life. Philosophical ethics addresses such basic questions as "Are moral obligations relative?"; "Which has priority: well-being or obligation?"; and "What gives life meaning?" The main branches of ethics are meta-ethics , normative ethics , and applied ethics . Meta-ethics asks abstract questions about
2875-483: Is an expression of the philosopher's love of wisdom and has the aim of improving one's well-being by leading a reflective life. For example, the Stoics saw philosophy as an exercise to train the mind and thereby achieve eudaimonia and flourish in life. As a discipline, the history of philosophy aims to provide a systematic and chronological exposition of philosophical concepts and doctrines. Some theorists see it as
2990-451: Is closely related to the disciplines of logic and linguistics. The philosophy of language rose to particular prominence in the early 20th century in analytic philosophy due to the works of Frege and Russell. One of its central topics is to understand how sentences get their meaning. There are two broad theoretical camps: those emphasizing the formal truth conditions of sentences and those investigating circumstances that determine when it
3105-408: Is concerned with meaning , understanding , or the clarification of language. According to one view, philosophy is conceptual analysis , which involves finding the necessary and sufficient conditions for the application of concepts. Another definition characterizes philosophy as thinking about thinking to emphasize its self-critical, reflective nature. A further approach presents philosophy as
3220-460: Is itself a borrowing from the Latin philosophia . The term philosophy acquired the meanings of "advanced study of the speculative subjects ( logic , ethics , physics , and metaphysics )", "deep wisdom consisting of love of truth and virtuous living", "profound learning as transmitted by the ancient writers", and "the study of the fundamental nature of knowledge , reality , and existence , and
3335-593: Is often considered to be among the most important and influential philosophers of the 20th century, specially in the continental tradition . In April 1933, Heidegger was elected as rector at the University of Freiburg and was widely criticized for his membership and support for the Nazi Party during his tenure. After World War II he was dismissed from Freiburg and banned from teaching after denazification hearings at Freiburg. There has been controversy about
3450-535: Is one way in which Heidegger breaks from the Cartesian tradition of beginning from the perspective of individual subjectivity. Dreyfus argues that the chapter on das Man is "the most confused" in Being and Time and so is often misinterpreted. The problem, he says, is that Heidegger's presentation conflates two opposing influences. The first is Dilthey's account of the role that public and historical contexts have in
3565-475: Is presented by coherentists , who state that a belief is justified if it coheres with other beliefs of the person. Many discussions in epistemology touch on the topic of philosophical skepticism , which raises doubts about some or all claims to knowledge. These doubts are often based on the idea that knowledge requires absolute certainty and that humans are unable to acquire it. Ethics, also known as moral philosophy, studies what constitutes right conduct . It
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3680-418: Is sometimes understood as a proper science in its own right. According to some naturalistic philosophers , such as W. V. O. Quine , philosophy is an empirical yet abstract science that is concerned with wide-ranging empirical patterns instead of particular observations. Science-based definitions usually face the problem of explaining why philosophy in its long history has not progressed to the same extent or in
3795-439: Is that actions are in tune with those duties and not what consequences they have. Virtue theorists judge actions based on how the moral character of the agent is expressed. According to this view, actions should conform to what an ideally virtuous agent would do by manifesting virtues like generosity and honesty . Logic is the study of correct reasoning . It aims to understand how to distinguish good from bad arguments . It
3910-468: Is the 1687 book Philosophiæ Naturalis Principia Mathematica by Isaac Newton . This book referred to natural philosophy in its title, but it is today considered a book of physics. The meaning of philosophy changed toward the end of the modern period when it acquired the more narrow meaning common today. In this new sense, the term is mainly associated with philosophical disciplines like metaphysics, epistemology, and ethics. Among other topics, it covers
4025-561: Is the study of correct reasoning and explores how good arguments can be distinguished from bad ones. Metaphysics examines the most general features of reality , existence, objects , and properties . Other subfields are aesthetics , philosophy of language , philosophy of mind , philosophy of religion , philosophy of science , philosophy of mathematics , philosophy of history , and political philosophy . Within each branch, there are competing schools of philosophy that promote different principles, theories, or methods. Philosophers use
4140-409: Is to be understood according to our sense of our possibilities: things present themselves to people in terms of their projects, the uses to which they can put them. The 'sight' with which people grasp equipment is not a mentalistic intentionality, but what Heidegger calls 'circumspection'. This is to say that equipment reveals itself in terms of its 'towards-which,' in terms of the work it is good for. In
4255-409: Is transparent; when it is used, it is subsumed under the work toward which it is employed. Heidegger calls this structure of practically ordered reference relations the 'worldhood of the world'. Heidegger calls the mode of being of such entities "ready-to-hand", for they are understood only in being handled. If the fork is made of plastic, however, and it snaps in the course of using it, then it assumes
4370-462: Is truth established?"; and "Can we prove causal relations?" Epistemology is primarily interested in declarative knowledge or knowledge of facts, like knowing that Princess Diana died in 1997. But it also investigates practical knowledge , such as knowing how to ride a bicycle, and knowledge by acquaintance , for example, knowing a celebrity personally. One area in epistemology is the analysis of knowledge . It assumes that declarative knowledge
4485-456: Is usually divided into formal and informal logic . Formal logic uses artificial languages with a precise symbolic representation to investigate arguments. In its search for exact criteria, it examines the structure of arguments to determine whether they are correct or incorrect. Informal logic uses non-formal criteria and standards to assess the correctness of arguments. It relies on additional factors such as content and context. Logic examines
4600-556: Is whether beauty is an objective feature of entities or a subjective aspect of experience. Aesthetic philosophers also investigate the nature of aesthetic experiences and judgments . Further topics include the essence of works of art and the processes involved in creating them. The philosophy of language studies the nature and function of language . It examines the concepts of meaning , reference , and truth. It aims to answer questions such as how words are related to things and how language affects human thought and understanding. It
4715-527: The Quran . Al-Kindi (801–873 CE) is usually regarded as the first philosopher of this tradition. He translated and interpreted many works of Aristotle and Neoplatonists in his attempt to show that there is a harmony between reason and faith . Avicenna (980–1037 CE) also followed this goal and developed a comprehensive philosophical system to provide a rational understanding of reality encompassing science, religion, and mysticism. Al-Ghazali (1058–1111 CE)
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4830-669: The Rhine . In late 1946, as France engaged in épuration légale in its occupation zone , the French military authorities determined that Heidegger should be blocked from teaching or participating in any university activities because of his association with the Nazi Party. Nevertheless, he presented the talk "What are Poets for?" in memory of Rilke . He also published "On Humanism" in 1947 to clarify his differences with Jean-Paul Sartre and French existentialism . The denazification procedures against Heidegger continued until March 1949 when he
4945-404: The University of Marburg . His colleagues there included Rudolf Bultmann , Nicolai Hartmann , Paul Tillich , and Paul Natorp . Heidegger's students at Marburg included Hans-Georg Gadamer , Hannah Arendt , Karl Löwith , Gerhard Krüger , Leo Strauss , Jacob Klein , Günther Anders , and Hans Jonas . Following Aristotle , he began to develop in his lectures the main theme of his philosophy:
5060-465: The western front upon being deemed unfit for combat. Heidegger married Elfride Petri on 21 March 1917 in a Catholic ceremony officiated by his friend Engelbert Krebs [ de ] , and a week later in a Protestant ceremony in the presence of her parents. Their first son, Jörg, was born in 1919. Elfride then gave birth to Hermann [ de ] in August 1920. Heidegger knew that he
5175-399: The "categories" of metaphysics. Heidegger unifies these three existential features of Dasein in a composite structure he terms "care": "ahead-of-itself-being-already-in-(the-world) as being-amidst (entities encountered within-the-world)." What unifies this formula is temporality . Understanding is oriented towards future possibilities, attunement is shaped by the past, and discourse discloses
5290-420: The "things themselves", that is, as originally given in experience. They contend that this base-level of experience provides the foundation for higher-order theoretical knowledge, and that one needs to understand the former to understand the latter. An early approach found in ancient Greek and Roman philosophy is that philosophy is the spiritual practice of developing one's rational capacities. This practice
5405-412: The 5th century CE. Its focus was on religious topics and many thinkers used ancient philosophy to explain and further elaborate Christian doctrines . The Renaissance period started in the 14th century and saw a renewed interest in schools of ancient philosophy, in particular Platonism . Humanism also emerged in this period. The modern period started in the 17th century. One of its central concerns
5520-455: The Nazi Party. Per their agreement, it was not published until five days after his death in 1976, under the title " Only a God Can Save Us " after a reference to Hölderlin that Heidegger makes during the interview. Heidegger's publications during this time were mostly reworked versions of his lectures. In his last days, he also arranged for a complete edition of his works to be compiled and published. Its first volume appeared in 1975. As of 2019,
5635-609: The Nazis eventually prevented him from publishing. In 1935, he gave the talk " The Origin of the Work of Art ". The next year, while in Rome, Heidegger gave his first lecture on Friedrich Hölderlin . In the years 1936–1937, Heidegger wrote what some commentators consider his second greatest work, Contributions to Philosophy ; it would not be published, however, until 1989, 13 years after his death. From 1936 to 1940, Heidegger also delivered
5750-422: The University of Freiburg in 1933. In 1927 Heidegger published his main work, Sein und Zeit ( Being and Time ). He was primarily concerned to qualify to be a full professor. The book, however, did more than this: it raised him to "a position of international intellectual visibility." When Husserl retired as professor of philosophy in 1928, Heidegger accepted Freiburg's election to be his successor, in spite of
5865-465: The articulation and realization of these ideas. Søren Kierkegaard contributed much to Heidegger's treatment of the existentialist aspects of his thought located in Division II of Being and Time . Heidegger's concepts of anxiety ( Angst ) and mortality draw on Kierkegaard and are indebted to the way in which the latter lays out the importance of our subjective relation to truth, our existence in
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#17327840354375980-442: The basic limits of human understanding". Before the modern age, the term philosophy was used in a wide sense. It included most forms of rational inquiry, such as the individual sciences , as its subdisciplines. For instance, natural philosophy was a major branch of philosophy. This branch of philosophy encompassed a wide range of fields, including disciplines like physics, chemistry , and biology . An example of this usage
6095-441: The beginning of the 20th century. It discusses topics such as ethnophilosophy , négritude , pan-Africanism , Marxism, postcolonialism , the role of cultural identity, relativism , epistemological dualism , and the critique of Eurocentrism . Philosophical questions can be grouped into several branches. These groupings allow philosophers to focus on a set of similar topics and interact with other thinkers who are interested in
6210-457: The beginning, and it is certain they were romantically involved in the summer of 1929. Blochmann was Jewish , which raises questions in light of Heidegger's later membership in the Nazi Party . From 1919 to 1923, Heidegger taught courses at the University of Freiburg . At this time he also became an assistant to Husserl, who had been a professor there since 1916. In 1923, Heidegger was elected to an extraordinary professorship in philosophy at
6325-560: The color red, can exist at different locations at the same time. This is not the case for particulars including individual persons or specific objects. Other metaphysical questions are whether the past fully determines the present and what implications this would have for the existence of free will . There are many other subfields of philosophy besides its core branches. Some of the most prominent are aesthetics, philosophy of language, philosophy of mind, philosophy of religion, philosophy of science, and political philosophy. Aesthetics in
6440-461: The conclusion is true. One form is inductive reasoning . It starts from a set of individual cases and uses generalization to arrive at a universal law governing all cases. An example is the inference that "all ravens are black" based on observations of many individual black ravens. Another form is abductive reasoning . It starts from an observation and concludes that the best explanation of this observation must be true. This happens, for example, when
6555-614: The consequences of the general theories developed by normative ethics in specific situations, for example, in the workplace or for medical treatments. Within contemporary normative ethics, consequentialism, deontology , and virtue ethics are influential schools of thought. Consequentialists judge actions based on their consequences. One such view is utilitarianism , which argues that actions should increase overall happiness while minimizing suffering. Deontologists judge actions based on whether they follow moral duties, such as abstaining from lying or killing. According to them, what matters
6670-541: The edition is almost complete at over 100 volumes. Heidegger died on 26 May 1976 in Freiburg . A few months before his death, he met with Bernhard Welte, a Catholic priest, Freiburg University professor and earlier correspondent. The exact nature of their conversation is not known, but what is known is that it included talk of Heidegger's relationship to the Catholic Church and subsequent Christian burial at which
6785-400: The emergence and application of formal logic , the focus on the role of language as well as pragmatism , and movements in continental philosophy like phenomenology, existentialism , and post-structuralism . The 20th century saw a rapid expansion of academic philosophy in terms of the number of philosophical publications and philosophers working at academic institutions . There was also
6900-482: The emergence of non-Vedic teachings, like Buddhism and Jainism . Buddhism was founded by Gautama Siddhartha (563–483 BCE), who challenged the Vedic idea of a permanent self and proposed a path to liberate oneself from suffering . Jainism was founded by Mahavira (599–527 BCE), who emphasized non-violence as well as respect toward all forms of life. The subsequent classical period started roughly 200 BCE and
7015-454: The everyday world, people are absorbed within the equipmental totality of their work-world. Moreover, on Heidegger's analysis, this entails a radical holism. In his own words, "there 'is' no such thing as an equipment". For example, when someone sits down to dinner and picks up their fork, they are not picking up an object with good stabbing properties: they are non-reflectively engaging an 'in-order-to-eat'. When it works as expected, equipment
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#17327840354377130-441: The exploration of the nature of reality and the ways of arriving at knowledge. Chinese philosophy focuses principally on practical issues in relation to right social conduct, government, and self-cultivation . Major branches of philosophy are epistemology , ethics , logic , and metaphysics . Epistemology studies what knowledge is and how to acquire it. Ethics investigates moral principles and what constitutes right conduct. Logic
7245-562: The face of death, the temporality of existence, and the importance of passionate affirmation of one's individual being-in-the-world. According to scholar Taylor Carman , traditional ontology asks "Why is there anything?", whereas Heidegger's fundamental ontology asks "What does it mean for something to be?" Heidegger's ontology "is fundamental relative to traditional ontology in that it concerns what any understanding of entities necessarily presupposes, namely, our understanding of that by virtue of which entities are entities". This line of inquiry
7360-407: The features that all entities have in common. Specific metaphysics is interested in different kinds of being, the features they have, and how they differ from one another. An important area in metaphysics is ontology . Some theorists identify it with general metaphysics. Ontology investigates concepts like being , becoming , and reality. It studies the categories of being and asks what exists on
7475-539: The history of philosophy include Western , Arabic–Persian , Indian , and Chinese philosophy . Other philosophical traditions are Japanese philosophy , Latin American philosophy , and African philosophy . Western philosophy originated in Ancient Greece in the 6th century BCE with the pre-Socratics . They attempted to provide rational explanations of the cosmos as a whole. The philosophy following them
7590-420: The importance of a strong state and strict laws. Buddhism was introduced to China in the 1st century CE and diversified into new forms of Buddhism . Starting in the 3rd century CE, the school of Xuanxue emerged. It interpreted earlier Daoist works with a specific emphasis on metaphysical explanations. Neo-Confucianism developed in the 11th century CE. It systematized previous Confucian teachings and sought
7705-419: The indigenous Shinto religion and Chinese and Indian thought in the forms of Confucianism and Buddhism, both of which entered Japan in the 6th and 7th centuries. Its practice is characterized by active interaction with reality rather than disengaged examination. Neo-Confucianism became an influential school of thought in the 16th century and the following Edo period and prompted a greater focus on language and
7820-483: The interconnectedness of all things. Latin American philosophy during the colonial period , starting around 1550, was dominated by religious philosophy in the form of scholasticism . Influential topics in the post-colonial period were positivism , the philosophy of liberation , and the exploration of identity and culture. Early African philosophy, like Ubuntu philosophy , was focused on community, morality, and ancestral ideas. Systematic African philosophy emerged at
7935-495: The kind of being that people have, namely, that humans are the sort of beings able to pose the question of the meaning of being. According to Canadian philosopher Sean McGrath Heidegger was probably influenced by Scotus in this approach. His term for us, in this phenomenological context, is Dasein . This procedure works because Dasein's pre-ontological understanding of being shapes experience. Dasein's ordinary and even mundane experience of "being-in-the-world" provides "access to
8050-551: The manifestation of cognitive virtues instead of justification; or they deny that knowledge can be analyzed in terms of other phenomena. Another area in epistemology asks how people acquire knowledge. Often-discussed sources of knowledge are perception , introspection , memory , inference , and testimony . According to empiricists , all knowledge is based on some form of experience. Rationalists reject this view and hold that some forms of knowledge, like innate knowledge , are not acquired through experience. The regress problem
8165-480: The meaning of being because it does not seem possible, from such a condition, to even raise the question of being that Heidegger claims to pursue. He responds to this challenge with his account of authenticity . Heidegger's term Eigentlichkeit is a neologism, in which Heidegger stresses the root eigen , meaning "own." So this word, usually translated "authenticity", could just as well be translated "ownedness" or "being one's own". Authenticity, according to Heidegger,
8280-407: The meaning" or "sense of being"; that is, the terms in which "something becomes intelligible as something." Heidegger proposes that this ordinary "prescientific" understanding precedes abstract ways of knowing, such as logic or theory. Being and Time is designed to show how this implicit understanding can be made progressively explicit through phenomenology and hermeneutics . Heidegger introduces
8395-415: The mode of being that Heidegger calls "present-at-hand." For now the fork needs to be made the object of focal awareness, considering it in terms of its properties. Is it too broken to use? If so, could the diner possibly get by with another utensil or just with their fingers? This kind of equipmental breakdown is not the only way that objects become present-at-hand for us, but Heidegger considers it typical of
8510-496: The modern sense of the term. Influential traditions in the history of philosophy include Western , Arabic–Persian , Indian , and Chinese philosophy . Western philosophy originated in Ancient Greece and covers a wide area of philosophical subfields. A central topic in Arabic–Persian philosophy is the relation between reason and revelation . Indian philosophy combines the spiritual problem of how to reach enlightenment with
8625-596: The most fundamental level. Another subfield of metaphysics is philosophical cosmology . It is interested in the essence of the world as a whole. It asks questions including whether the universe has a beginning and an end and whether it was created by something else. A key topic in metaphysics concerns the question of whether reality only consists of physical things like matter and energy. Alternative suggestions are that mental entities (such as souls and experiences ) and abstract entities (such as numbers) exist apart from physical things. Another topic in metaphysics concerns
8740-404: The most influential philosophers of the subsequent period. The increasing influence of Western thought and institutions in the 19th and 20th centuries gave rise to the intellectual movement of Islamic modernism , which aims to understand the relation between traditional Islamic beliefs and modernity. One of the distinguishing features of Indian philosophy is that it integrates the exploration of
8855-459: The most part, one does not distinguish oneself—those among whom one is too". Quite frequently the term is just left in the German. According to philosopher Hubert Dreyfus , part of Heidegger's aim is to show that, contrary to Husserl, individuals do not generate an intersubjective world from their separate activities; rather, "these activities presuppose the disclosure of one shared world." This
8970-472: The natural and social sciences, religion, and mathematics. Epistemology is the branch of philosophy that studies knowledge. It is also known as theory of knowledge and aims to understand what knowledge is, how it arises, what its limits are, and what value it has. It further examines the nature of truth , belief , justification , and rationality . Some of the questions addressed by epistemologists include "By what method(s) can one acquire knowledge?"; "How
9085-504: The natural world. The Kyoto School emerged in the 20th century and integrated Eastern spirituality with Western philosophy in its exploration of concepts like absolute nothingness ( zettai-mu ), place ( basho ), and the self . Latin American philosophy in the pre-colonial period was practiced by indigenous civilizations and explored questions concerning the nature of reality and the role of humans. It has similarities to indigenous North American philosophy , which covered themes such as
9200-455: The nature and sources of morality. It analyzes the meaning of ethical concepts, like right action and obligation . It also investigates whether ethical theories can be true in an absolute sense and how to acquire knowledge of them. Normative ethics encompasses general theories of how to distinguish between right and wrong conduct. It helps guide moral decisions by examining what moral obligations and rights people have. Applied ethics studies
9315-471: The nature of reality, the ways of arriving at knowledge, and the spiritual question of how to reach enlightenment . It started around 900 BCE when the Vedas were written. They are the foundational scriptures of Hinduism and contemplate issues concerning the relation between the self and ultimate reality as well as the question of how souls are reborn based on their past actions . This period also saw
9430-423: The philosopher of the party, but the highly abstract nature of his work and the opposition of Alfred Rosenberg , who himself aspired to act in that position, limited Heidegger's role. His withdrawal from his position as rector owed more to his frustration as an administrator than to any principled opposition to the Nazis, according to historians. In his inaugural address as rector on 27 May he expressed his support of
9545-436: The philosophical sense is the field that studies the nature and appreciation of beauty and other aesthetic properties, like the sublime . Although it is often treated together with the philosophy of art , aesthetics is a broader category that encompasses other aspects of experience, such as natural beauty. In a more general sense, aesthetics is "critical reflection on art, culture, and nature ". A key question in aesthetics
9660-417: The precise definition of the term and its meaning has changed throughout the ages. Metaphysicians attempt to answer basic questions including " Why is there something rather than nothing? "; "Of what does reality ultimately consist?"; and "Are humans free?" Metaphysics is sometimes divided into general metaphysics and specific or special metaphysics. General metaphysics investigates being as such. It examines
9775-413: The present in those terms. In this way, the investigation into the being of Dasein leads to time. Much of Division II of Being and Time is devoted to a more fundamental reinterpretation of the findings of Division I in terms of Dasein's temporality. As implied in the analysis of both attunement and discourse, Dasein is "always already", or a priori , a social being. In Heidegger's technical idiom, Dasein
9890-587: The priest officiated. Heidegger was buried in the Meßkirch cemetery. Edmund Husserl , the founder of phenomenology , was Heidegger's teacher and a major influence on his thought. While the specific lines of influence remain a matter of scholarly dispute, one thing is clear: Heidegger's early work on Being and Time moved away from Husserl's theory of intentionality to focus on the pre-theoretical conditions that enable consciousness to grasp objects. Aristotle influenced Heidegger from an early age. This influence
10005-628: The priesthood and turned his attention to recent philosophy, in particular, Edmund Husserl 's Logical Investigations . He graduated with a thesis on psychologism , The Doctrine of Judgment in Psychologism: A Critical-theoretical Contribution to Logic , in 1914. The following year, he completed his habilitation thesis on Duns Scotus , which was directed by Heinrich Rickert , a Neo-Kantian , and influenced by Husserl's phenomenology . The title has been published in several languages and in English
10120-400: The problem of identity . One question is how much an entity can change while still remaining the same entity. According to one view, entities have essential and accidental features . They can change their accidental features but they cease to be the same entity if they lose an essential feature. A central distinction in metaphysics is between particulars and universals . Universals, like
10235-495: The production of significance. The second is Kierkegaard's insistence that truth is never to be found in the crowd. The Diltheyian dimension of Heidegger's analysis positions das Man as ontologically existential in the same way as understanding, affectedness, and discourse. This dimension of Heidegger's analysis captures the way that a socio-historical "background" makes possible the specific significance that entities and activities can have. Philosopher Charles Taylor expands upon
10350-428: The provocative, vexing, and enduring problems central to the human condition. The philosophical pursuit of wisdom involves asking general and fundamental questions. It often does not result in straightforward answers but may help a person to better understand the topic, examine their life, dispel confusion, and overcome prejudices and self-deceptive ideas associated with common sense. For example, Socrates stated that "
10465-414: The question of the meaning of being; that is, the question of how entities appear as the specific entities they are. In other words, Heidegger's governing "question of being" is concerned with what makes beings intelligible as beings. Heidegger was born on 26 September 1889 in rural Meßkirch , Baden , the son of Johanna (Kempf) and Friedrich Heidegger. His father was the sexton of the village church, and
10580-467: The question of the sense of being. He extended the concept of subject to the dimension of history and concrete existence , which he found prefigured in such Christian thinkers as Paul of Tarsus , Augustine of Hippo , Martin Luther , and Søren Kierkegaard . He also read the works of Wilhelm Dilthey , Husserl, Max Scheler , and Friedrich Nietzsche . In 1925, a 35-year-old Heidegger began what would be
10695-436: The rational study of reality, knowledge, and values. It is distinguished from other disciplines of rational inquiry such as the empirical sciences and mathematics . The practice of philosophy is characterized by several general features: it is a form of rational inquiry, it aims to be systematic, and it tends to critically reflect on its own methods and presuppositions. It requires attentively thinking long and carefully about
10810-525: The real dictatorship of the 'they' is unfolded. We take pleasure and enjoy ourselves as they take pleasure; we read, see and judge about literature and art as they see and judge; likewise we shrink back from the 'great mass' as they shrink back; we find 'shocking' what they find shocking. The 'they', which is nothing definite, and which we all are, through not as the sum, prescribes the kind of being of everydayness. This "dictatorship of das Man " threatens to undermine Heidegger's entire project of uncovering
10925-425: The relationship between his philosophy and Nazism . In Heidegger's first major text, Being and Time (1927), Dasein is introduced as a term for the type of being that humans possess. Heidegger believed that Dasein already has a "pre-ontological" and concrete understanding that shapes how it lives, which he analyzed in terms of the unitary structure of "being-in-the-world". Heidegger used this analysis to approach
11040-488: The same questions. Epistemology, ethics, logic, and metaphysics are sometimes listed as the main branches. There are many other subfields besides them and the different divisions are neither exhaustive nor mutually exclusive. For example, political philosophy, ethics, and aesthetics are sometimes linked under the general heading of value theory as they investigate normative or evaluative aspects. Furthermore, philosophical inquiry sometimes overlaps with other disciplines in
11155-410: The same way as the sciences. This problem is avoided by seeing philosophy as an immature or provisional science whose subdisciplines cease to be philosophy once they have fully developed. In this sense, philosophy is sometimes described as "the midwife of the sciences". Other definitions focus on the contrast between science and philosophy. A common theme among many such conceptions is that philosophy
11270-508: The scope and fundamental concepts of these fields. It also investigates their methods and ethical implications. The word philosophy comes from the Ancient Greek words φίλος ( philos ) ' love ' and σοφία ( sophia ) ' wisdom ' . Some sources say that the term was coined by the pre-Socratic philosopher Pythagoras , but this is not certain. The word entered the English language primarily from Old French and Anglo-Norman starting around 1175 CE. The French philosophie
11385-598: The study of the biggest patterns of the world as a whole or as the attempt to answer the big questions. Such an approach is pursued by Immanuel Kant , who holds that the task of philosophy is united by four questions: "What can I know?"; "What should I do?"; "What may I hope?"; and "What is the human being?" Both approaches have the problem that they are usually either too wide, by including non-philosophical disciplines, or too narrow, by excluding some philosophical sub-disciplines. Many definitions of philosophy emphasize its intimate relation to science. In this sense, philosophy
11500-469: The teachings of Advaita Vedanta to argue that all the different religions are valid paths toward the one divine. Chinese philosophy is particularly interested in practical questions associated with right social conduct, government, and self-cultivation . Many schools of thought emerged in the 6th century BCE in competing attempts to resolve the political turbulence of that period. The most prominent among them were Confucianism and Daoism . Confucianism
11615-401: The term Dasein to denote a "living being" through its activity of "being there". Understood as a unitary phenomenon rather than a contingent, additive combination, it is characterized by Heidegger as "being-in-the-world". Heidegger insists that the 'in' of Dasein's being-in-the-world is an 'in' of involvement or of engagement, not of objective, physical enclosedness. The sense in which Dasein
11730-452: The term: "It is that of which I am not simply unaware... but at the same time I cannot be said to be explicitly or focally aware of it, because that status is already occupied by what it is making intelligible". For this reason, background non-representationally informs and enables engaged agency in the world, but is something that people can never make fully explicit to themselves. The Kierkegaardian influence on Heidegger's analysis introduces
11845-601: The unexamined life is not worth living " to highlight the role of philosophical inquiry in understanding one's own existence. And according to Bertrand Russell , "the man who has no tincture of philosophy goes through life imprisoned in the prejudices derived from common sense, from the habitual beliefs of his age or his nation, and from convictions which have grown up in his mind without the cooperation or consent of his deliberate reason." Attempts to provide more precise definitions of philosophy are controversial and are studied in metaphilosophy . Some approaches argue that there
11960-568: The way that this shift occurs in the course of ordinary goings-on. In this way, Heidegger creates a theoretical space for the categories of subject and object, while at the same time denying that they apply to our most basic way of moving about in the world, of which they are instead presented as derivative. Heidegger presents three primary structural features of being-in-the-world: understanding, attunement, and discourse. He calls these features "existentiales" or "existentialia" ( Existenzialien ) to distinguish their ontological status, as distinct from
12075-419: The young Martin was raised Roman Catholic . In 1903, Heidegger began to train for the priesthood . He entered a Jesuit seminary in 1909, but was discharged within weeks because of heart trouble. It was during this time that he first encountered the work of Franz Brentano . From here he went on to study theology and scholastic philosophy at the University of Freiburg . In 1911 he broke off training for
12190-472: Was a strong critic of the idea that reason can arrive at a true understanding of reality and God. He formulated a detailed critique of philosophy and tried to assign philosophy a more limited place besides the teachings of the Quran and mystical insight. Following Al-Ghazali and the end of the classical period, the influence of philosophical inquiry waned. Mulla Sadra (1571–1636 CE) is often regarded as one of
12305-437: Was characterized by the emergence of the six orthodox schools of Hinduism : Nyāyá , Vaiśeṣika , Sāṃkhya , Yoga , Mīmāṃsā , and Vedanta . The school of Advaita Vedanta developed later in this period. It was systematized by Adi Shankara ( c. 700 –750 CE), who held that everything is one and that the impression of a universe consisting of many distinct entities is an illusion . A slightly different perspective
12420-438: Was deeply influenced by him. Heidegger was elected rector of the university on 21 April 1933, and joined the Nazi Party on 1 May, just three months after Adolf Hitler was appointed chancellor. During his time as rector he was a member and an enthusiastic supporter of the party. There is continuing controversy as to the relationship between his philosophy and his political allegiance to Nazism . He wanted to position himself as
12535-660: Was defended by Ramanuja (1017–1137 CE), who founded the school of Vishishtadvaita Vedanta and argued that individual entities are real as aspects or parts of the underlying unity. He also helped to popularize the Bhakti movement , which taught devotion toward the divine as a spiritual path and lasted until the 17th to 18th centuries CE. The modern period began roughly 1800 CE and was shaped by encounters with Western thought. Philosophers tried to formulate comprehensive systems to harmonize diverse philosophical and religious teachings. For example, Swami Vivekananda (1863–1902 CE) used
12650-539: Was finally pronounced a Mitläufer (the second lowest of five categories of "incrimination" by association with the Nazi regime). No punitive measures against him were proposed. This opened the way for his readmission to teaching at Freiburg University in the winter semester of 1950–51. He was granted emeritus status and then taught regularly from 1951 until 1958, and by invitation until 1967. In 1966 he gave an interview to Der Spiegel attempting to justify his support of
12765-511: Was founded by Confucius (551–479 BCE). It focused on different forms of moral virtues and explored how they lead to harmony in society. Daoism was founded by Laozi (6th century BCE) and examined how humans can live in harmony with nature by following the Dao or the natural order of the universe. Other influential early schools of thought were Mohism , which developed an early form of altruistic consequentialism , and Legalism , which emphasized
12880-512: Was how philosophical and scientific knowledge are created. Specific importance was given to the role of reason and sensory experience . Many of these innovations were used in the Enlightenment movement to challenge traditional authorities. Several attempts to develop comprehensive systems of philosophy were made in the 19th century, for instance, by German idealism and Marxism . Influential developments in 20th-century philosophy were
12995-518: Was mediated through Catholic theology , medieval philosophy , and Franz Brentano . According to scholar Michael Wheeler, it is by way of a "radical rethinking" of Aristotle's Metaphysics that Heidegger supplants Husserl's notion of intentionality with his unitary notion of being-in-the-world. According to this reinterpretation, the various modes of being are united in more basic capacity of taking-as or making-present-to. The works of Wilhelm Dilthey shaped Heidegger's very early project of developing
13110-474: Was not Hermann's biological father, but raised him as his son. Hermann's biological father, who became godfather to his son, was family friend and doctor Friedel Caesar. Hermann was told of this at the age of 14; Hermann grew up to become a historian and would later serve as the executor of Heidegger's will. In the same year that he married his wife, Heidegger began a decades-long correspondence with her friend Elisabeth Blochmann . Their letters are suggestive from
13225-449: Was shaped by Socrates (469–399 BCE), Plato (427–347 BCE), and Aristotle (384–322 BCE). They expanded the range of topics to questions like how people should act , how to arrive at knowledge , and what the nature of reality and mind is. The later part of the ancient period was marked by the emergence of philosophical movements, for example, Epicureanism , Stoicism , Skepticism , and Neoplatonism . The medieval period started in
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