Philosophy ('love of wisdom' in Ancient Greek) 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 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 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.
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Anekāntavāda (Sanskrit: अनेकान्तवाद, "many-sidedness", Tamil: பல்லுரை) is the Jain doctrine about metaphysical truths that emerged in ancient India. It states that the ultimate truth and reality is complex and has multiple aspects and viewpoints.
According to Jainism, no single, specific statement can describe the nature of existence and the absolute truth. This knowledge (Kevala Jnana), it adds, is comprehended only by the Arihants. Other beings and their statements about absolute truth are incomplete, and at best a partial truth. All knowledge claims, according to the anekāntavāda doctrine must be qualified in many ways, including being affirmed and denied. Anekāntavāda is a fundamental doctrine of Jainism. (Full article...)
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Sir Bernard Arthur Owen Williams, FBA (21 September 1929 – 10 June 2003) was an English moral philosopher. His publications include Problems of the Self (1973), Ethics and the Limits of Philosophy (1985), Shame and Necessity (1993), and Truth and Truthfulness (2002). He was knighted in 1999.
In political philosophy, a throffer is a proposal (also called an intervention) that mixes an offer with a threat which will be carried out if the offer is not accepted. The term was first used in print by political philosopher Hillel Steiner; while other writers followed, it has not been universally adopted and it is sometimes considered synonymous with carrot and stick. Though the threatening aspect of a throffer need not be obvious, or even articulated at all, an overt example is: "Kill this man and receive £100; fail to kill him and I'll kill you."
Steiner differentiated offers, threats and throffers based on the preferability of compliance and noncompliance for the subject when compared to the normal course of events that would have come about were no intervention made. Steiner's account was criticised by philosopher Robert Stevens, who instead suggested that what was important in differentiating the kinds of intervention was whether performing or not performing the requested action was more or less preferable than it would have been were no intervention made. Throffers form part of the wider moral and political considerations of coercion, and form part of the question of the possibility of coercive offers. Contrary to received wisdom that only threats can be coercive, throffers lacking explicit threats have been cited as an example of coercive offers, while some writers argue that offers, threats and throffers may all be coercive if certain conditions are met. For others, by contrast, if a throffer is coercive, it is explicitly the threat aspect that makes it so, and not all throffers can be considered coercive. (Full article...)
Putnam applied equal scrutiny to his own philosophical positions as to those of others, subjecting each position to rigorous analysis until he exposed its flaws. As a result, he acquired a reputation for frequently changing his positions. In philosophy of mind, Putnam argued against the type-identity of mental and physical states based on his hypothesis of the multiple realizability of the mental, and for the concept of functionalism, an influential theory regarding the mind–body problem. In philosophy of language, along with Saul Kripke and others, he developed the causal theory of reference, and formulated an original theory of meaning, introducing the notion of semantic externalism based on a thought experiment called Twin Earth. (Full article...)
The lifetime of British writer, philosopher, and feministMary Wollstonecraft (1759–1797) encompassed most of the second half of the eighteenth century, a time of great political and social upheaval throughout Europe and America: political reform movements in Britain gained strength, the American colonists successfully rebelled, and the French Revolution erupted. Wollstonecraft experienced only the headiest of these days, not living to see the end of the democratic revolution when Napoleon crowned himself emperor. Although Britain was still revelling in its mid-century imperial conquests and its triumph in the Seven Years' War, it was the French revolution that defined Wollstonecraft's generation. As poet Robert Southey later wrote: "few persons but those who have lived in it can conceive or comprehend what the memory of the French Revolution was, nor what a visionary world seemed to open upon those who were just entering it. Old things seemed passing away, and nothing was dreamt of but the regeneration of the human race."
Part of what made reform possible in Britain in the second half of the eighteenth century was the dramatic increase in publishing; books, periodicals, and pamphlets became much more widely available than they had been just a few decades earlier. This increase in available printed material helped facilitate the rise of the British middle class. Reacting against what they viewed as aristocratic decadence, the new professional middle classes (made prosperous through British manufacturing and trade), offered their own ethical code: reason, meritocracy, self-reliance, religious toleration, free inquiry, free enterprise, and hard work. They set these values against what they perceived as the superstition and unreason of the poor and the prejudices, censorship, and self-indulgence of the rich. They also helped establish what has come to be called the "cult of domesticity", which solidified gender roles for men and women. This new vision of society rested on the writings of Scottish Enlightenment philosophers such as Adam Smith, who had developed a theory of social progress founded on sympathy and sensibility. A partial critique of the rationalist Enlightenment, these theories promoted a combination of reason and feeling that enabled women to enter the public sphere because of their keen moral sense. Wollstonecraft's writings stand at the nexus of all of these changes. Her educational works, such as her children's bookOriginal Stories from Real Life (1788), helped inculcate middle-class values, and her two Vindications, A Vindication of the Rights of Men (1790) and A Vindication of the Rights of Woman (1792), argue for the value of an educated, rational populace, specifically one that includes women. In her two novels, Mary: A Fiction and Maria: or, The Wrongs of Woman, she explores the ramifications of sensibility for women. (Full article...)
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Portrait by August Köhler, c. 1910, after 1627 original
Kepler was a mathematics teacher at a seminary school in Graz, where he became an associate of Prince Hans Ulrich von Eggenberg. Later he became an assistant to the astronomer Tycho Brahe in Prague, and eventually the imperial mathematician to Emperor Rudolf II and his two successors Matthias and Ferdinand II. He also taught mathematics in Linz, and was an adviser to General Wallenstein. Additionally, he did fundamental work in the field of optics, being named the father of modern optics, in particular for his Astronomiae pars optica. He also invented an improved version of the refracting telescope, the Keplerian telescope, which became the foundation of the modern refracting telescope, while also improving on the telescope design by Galileo Galilei, who mentioned Kepler's discoveries in his work. (Full article...)
Priestley is credited with his independent discovery of oxygen by the thermal decomposition of mercuric oxide, having isolated it in 1774. During his lifetime, Priestley's considerable scientific reputation rested on his invention of carbonated water, his writings on electricity, and his discovery of several "airs" (gases), the most famous being what Priestley dubbed "dephlogisticated air" (oxygen). Priestley's determination to defend phlogiston theory and to reject what would become the chemical revolution eventually left him isolated within the scientific community. (Full article...)
Confirmation bias (also confirmatory bias, myside bias, or congeniality bias) is the tendency to search for, interpret, favor, and recall information in a way that confirms or supports one's prior beliefs or values. People display this bias when they select information that supports their views, ignoring contrary information, or when they interpret ambiguous evidence as supporting their existing attitudes. The effect is strongest for desired outcomes, for emotionally charged issues, and for deeply entrenched beliefs.
Biased search for information, biased interpretation of this information, and biased memory recall, have been invoked to explain four specific effects:
attitude polarization (when a disagreement becomes more extreme even though the different parties are exposed to the same evidence)
belief perseverance (when beliefs persist after the evidence for them is shown to be false)
the irrational primacy effect (a greater reliance on information encountered early in a series)
illusory correlation (when people falsely perceive an association between two events or situations).
Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another. Although the Bohr model has been supplanted by other models, its underlying principles remain valid. He conceived the principle of complementarity: that items could be separately analysed in terms of contradictory properties, like behaving as a wave or a stream of particles. The notion of complementarity dominated Bohr's thinking in both science and philosophy. (Full article...)
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A stamp of Zhang Heng issued by China Post in 1955
Zhang Heng began his career as a minor civil servant in Nanyang. Eventually, he became Chief Astronomer, Prefect of the Majors for Official Carriages, and then Palace Attendant at the imperial court. His uncompromising stance on historical and calendrical issues led to his becoming a controversial figure, preventing him from rising to the status of Grand Historian. His political rivalry with the palace eunuchs during the reign of Emperor Shun (r. 125–144) led to his decision to retire from the central court to serve as an administrator of Hejian Kingdom in present-day Hebei. Zhang returned home to Nanyang for a short time, before being recalled to serve in the capital once more in 138. He died there a year later, in 139. (Full article...)
Born and raised in Albany, New York, Hand majored in philosophy at Harvard College and graduated with honors from Harvard Law School. After a relatively undistinguished career as a lawyer in Albany and New York City, he was appointed at the age of 37 as a Manhattan federal district judge in 1909. The profession suited his detached and open-minded temperament, and his decisions soon won him a reputation for craftsmanship and authority. Between 1909 and 1914, under the influence of Herbert Croly's social theories, Hand supported New Nationalism. He ran unsuccessfully as the Progressive Party's candidate for chief judge of the New York Court of Appeals in 1913, but withdrew from active politics shortly afterwards. In 1924, President Calvin Coolidge elevated Hand to the Court of Appeals for the Second Circuit, which he went on to lead as the senior circuit judge (later retitled chief judge) from 1939 until his semi-retirement in 1951. Scholars have recognized the Second Circuit under Hand as one of the finest appeals courts in American history. Friends and admirers often lobbied for Hand's promotion to the Supreme Court, but circumstances and his political past conspired against his appointment. (Full article...)
... that Chinese physician Yu Yan described theories like yinyang and the five phases as "simply all lies, absolutely not factual, and completely groundless"?
... that in his book How to Be Perfect, Michael Schur sought to "wade into some deeply confusing and painful applications of moral philosophy ... but in a fun way"?
Rand's writing emphasizes the philosophic concepts of objective reality, reason, rational egoism, and laissez-faire capitalism, while attacking what she saw as the irrationality and immorality of altruism, collectivism, and communism. She believed that people must choose their values and actions by reason; that the individual has a right to exist for his or her own sake, neither sacrificing self to others nor others to self; and that no one has the right to take what belongs to others by physical force or fraud, or impose their moral code on others by physical force. Her politics have been described as minarchism and libertarianism, though she never used the first term and detested the second.
Descriptive ethics deal with what the population believes to be right and wrong, while normative ethics deal with what the population should believe to be right and wrong.
Moreover, because it examines standards for the rightness and wrongness of actions, normative ethics is distinct from meta-ethics, which studies the nature of moral statements, and from applied ethics, which places normative rules in practical contexts.
Reich's work on character contributed to the development of Anna Freud's The Ego and the Mechanisms of Defence (1936), and his idea of muscular armour—the expression of the personality in the way the body moves—shaped innovations such as body psychotherapy, Gestalt therapy, bioenergetic analysis and primal therapy. His writing influenced generations of intellectuals; he coined the phrase "the sexual revolution" and according to one historian acted as its midwife. During the 1968 student uprisings in Paris and Berlin, students scrawled his name on walls and threw copies of The Mass Psychology of Fascism at police. (Full article...)
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Crime and Punishment (pre-reform Russian: Преступленіе и наказаніе; post-reform Russian: Преступление и наказание, romanized: Prestupleniye i nakazaniye, IPA:[prʲɪstʊˈplʲenʲɪje‿ɪ‿nəkɐˈzanʲɪje]) is a novel by the Russian author Fyodor Dostoevsky. It was first published in the literary journal The Russian Messenger in twelve monthly installments during 1866. It was later published in a single volume. It is the second of Dostoevsky's full-length novels following his return from ten years of exile in Siberia. Crime and Punishment is considered the first great novel of his mature period of writing and is often cited as one of the greatest works of world literature.
Crime and Punishment follows the mental anguish and moral dilemmas of Rodion Raskolnikov, an impoverished ex-student in Saint Petersburg who plans to kill an unscrupulous pawnbroker, an old woman who stores money and valuable objects in her flat. He theorises that with the money he could liberate himself from poverty and go on to perform great deeds, and seeks to convince himself that certain crimes are justifiable if they are committed in order to remove obstacles to the higher goals of "extraordinary" men. Once the deed is done, however, he finds himself wracked with confusion, paranoia, and disgust. His theoretical justifications lose all their power as he struggles with guilt and horror and is confronted with both internal and external consequences of his deed. (Full article...)
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Eliminative materialism (also called eliminativism) is a materialist position in the philosophy of mind. It is the idea that the majority of mental states in folk psychology do not exist. Some supporters of eliminativism argue that no coherent neural basis will be found for many everyday psychological concepts such as belief or desire, since they are poorly defined. The argument is that psychological concepts of behavior and experience should be judged by how well they reduce to the biological level. Other versions entail the nonexistence of conscious mental states such as pain and visual perceptions.
Eliminativism about a class of entities is the view that the class of entities does not exist. For example, materialism tends to be eliminativist about the soul; modern chemists are eliminativist about phlogiston; modern biologists are eliminativist about élan vital; and modern physicists are eliminativist about luminiferous ether. Eliminative materialism is the relatively new (1960s–70s) idea that certain classes of mental entities that common sense takes for granted, such as beliefs, desires, and the subjective sensation of pain, do not exist. The most common versions are eliminativism about propositional attitudes, as expressed by Paul and Patricia Churchland, and eliminativism about qualia (subjective interpretations about particular instances of subjective experience), as expressed by Daniel Dennett, Georges Rey, and Jacy Reese Anthis. (Full article...)
In 1971, Abernathy addressed the United Nations speaking about world peace. He also assisted in brokering a deal between the FBI and American Indian Movement protestors during the Wounded Knee incident of 1973. He retired from his position as president of the SCLC in 1977 and became president emeritus. Later that year he unsuccessfully ran for the U.S. House of Representatives for the 5th district of Georgia. He later founded the Foundation for Economic Enterprises Development, and he testified before the U.S. Congress in support of extending the Voting Rights Act in 1982. (Full article...)
Generally seen as a pioneering work of zoology, Aristotle frames his text by explaining that he is investigating the what (the existing facts about animals) prior to establishing the why (the causes of these characteristics). The book is thus an attempt to apply philosophy to part of the natural world. Throughout the work, Aristotle seeks to identify differences, both between individuals and between groups. A group is established when it is seen that all members have the same set of distinguishing features; for example, that all birds have feathers, wings, and beaks. This relationship between the birds and their features is recognized as a universal. (Full article...)
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Filial piety has been an important aspect of Buddhist ethics since early Buddhism, and was essential in the apologetics and texts of Chinese Buddhism. In the Early Buddhist Texts such as the Nikāyas and Āgamas, filial piety is prescribed and practiced in three ways: to repay the gratitude toward one's parents; as a good karma or merit; and as a way to contribute to and sustain the social order. In Buddhist scriptures, narratives are given of the Buddha and his disciples practicing filial piety toward their parents, based on the qualities of gratitude and reciprocity. Initially, scholars of Buddhism like Kenneth Ch'en saw Buddhist teachings on filial piety as a distinct feature of Chinese Buddhism. Later scholarship, led by people such as John Strong and Gregory Schopen, has come to believe that filial piety was part of Buddhist doctrine since early times. Strong and Schopen have provided epigraphical and textual evidence to show that early Buddhist laypeople, monks and nuns often displayed strong devotion to their parents, concluding that filial piety was already an important part of the devotional life of early Buddhists.
When Buddhism was introduced in China, it had no organized celibacy. Confucianism emphasized filial piety to parents and loyalty to the emperor, and Buddhist monastic life was seen to go against its tenets. In the 3rd–5th century, as criticism of Buddhism increased, Buddhist monastics and lay authors responded by writing about and translating Buddhist doctrines and narratives that supported filiality, comparing them to Confucianism and thereby defending Buddhism and its value in society. The Mouzi Lihuolun referred to Confucian and Daoist classics, as well as historical precedents to respond to critics of Buddhism. The Mouzi stated that while on the surface the Buddhist monk seems to reject and abandon his parents, he is actually aiding his parents as well as himself on the path towards enlightenment. Sun Chuo (c.300–380) further argued that monks were working to ensure the salvation of all people and making their family proud by doing so, and Liu Xie stated that Buddhists practiced filial piety by sharing merit with their departed relatives. Buddhist monks were also criticized for not expressing their respect to the Chinese emperor by prostrating and other devotion, which in Confucianism was associated with the virtue of filial piety. Huiyuan (334–416) responded that although monks did not express such piety, they did pay homage in heart and mind; moreover, their teaching of morality and virtue to the public helped support imperial rule. (Full article...)
Rothbard argued that all services provided by the "monopoly system of the corporate state" could be provided more efficiently by the private sector and wrote that the state is "the organization of robbery systematized and writ large". He called fractional-reserve banking a form of fraud and opposed central banking. He categorically opposed all military, political, and economic interventionism in the affairs of other nations. (Full article...)
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The second circle of hell is depicted in Dante Alighieri's 14th-century poem Inferno, the first part of the Divine Comedy. Inferno tells the story of Dante's journey through a vision of the Christian hell ordered into nine circles corresponding to classifications of sin; the second circle represents the sin of lust, where the lustful are punished by being buffeted within an endless tempest.
The circle of lust introduces Dante's depiction of King Minos, the judge of hell; this portrayal derives from the role of Minos in the Greek underworld in the works of Virgil and Homer. Dante also depicts a number of historical and mythological figures within the second circle, although chief among these are Francesca da Rimini and Paolo Malatesta, murdered lovers whose story was well-known in Dante's time. Malatesta and da Rimini have since been the focus of academic interpretation and the inspiration for other works of art. (Full article...)
Levinson advocates for a weak perfectionist state that can promote thick autonomy while accepting citizens who do not agree. She argues for public schools "common" to all citizens and "detached" from individual citizen or community values, and argues for a constitutional mandate to this end. (Full article...)
Abu al-Ala Ahmad ibn Abd Allah ibn Sulayman al-Tanukhi al-Ma'arri (Arabic: أبو العلاء أحمد بن عبد الله بن سليمان التنوخي المعري, romanized: ʾAbū al-ʿAlāʾ Aḥmad ibn ʿAbd Allāh ibn Sulaymān al-Tanūkhī al-Maʿarrī; December 973 – May 1057), also known by his Latin name Abulola Moarrensis; was an Arab philosopher, poet, and writer from Ma'arrat al-Nu'man, Syria. Because of his controversially irreligious worldview, he is known as one of the "foremost atheists" of his time according to Nasser Rabbat.
Born in the city of al-Ma'arra (present-day Ma'arrat al-Nu'man, Syria) during the later Abbasid era, he became blind at a young age from smallpox but nonetheless studied in nearby Aleppo, then in Tripoli and Antioch. Producing popular poems in Baghdad, he refused to sell his texts. In 1010, he returned to Syria after his mother began declining in health, and continued writing which gained him local respect. (Full article...)
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Karma is the basic principle within an overarching psycho-cosmology in Jainism. Human moral actions form the basis of the transmigration of the soul (jīva). The soul is constrained to a cycle of rebirth, trapped within the temporal world (saṃsāra), until it finally achieves liberation (mokṣa). Liberation is achieved by following a path of purification.
Jains believe that karma is a physical substance that is everywhere in the universe. Karma particles are attracted to the soul by the actions of that soul. Karma particles are attracted when we do, think, or say things, when we kill something, when we lie, when we steal and so on. Karma not only encompasses the causality of transmigration, but is also conceived of as an extremely subtle matter, which infiltrates the soul—obscuring its natural, transparent and pure qualities. Karma is thought of as a kind of pollution, that taints the soul with various colours (leśyā). Based on its karma, a soul undergoes transmigration and reincarnates in various states of existence—like heavens or hells, or as humans or animals. (Full article...)
Some definitions restrict torture to acts carried out by the state, while others include non-state organizations. Most victims of torture are poor and marginalized people suspected of crimes, although torture against political prisoners, or during armed conflict, has received disproportionate attention. Judicial corporal punishment and capital punishment are sometimes seen as forms of torture, but this label is internationally controversial. A variety of methods of torture are used, often in combination; the most common form of physical torture is beatings. Beginning in the twentieth century, many torturers have preferred non-scarring or psychological methods to maintain deniability. (Full article...)
Image 4The philosopher Pyrrho of Elis, in an anecdote taken from Sextus Empiricus' Outlines of Pyrrhonism
(upper)PIRRHO • HELIENSIS • PLISTARCHI • FILIVS translation (from Latin): Pyrrho • Greek • Son of Plistarchus
(middle)OPORTERE • SAPIENTEM HANC ILLIVS IMITARI SECVRITATEMtranslation (from Latin): It is right wisdom then that all imitate this security (Pyrrho pointing at a peaceful pig munching his food)
(lower)Whoever wants to apply the real wisdom, shall not mind trepidation and misery
Image 5The Buddhist Nalanda university and monastery was a major center of learning in India from the 5th century CE to c. 1200. (from Eastern philosophy)
Image 3Oscar Wilde reclining with Poems, by Napoleon Sarony, in New York in 1882. Wilde often liked to appear idle, though in fact he worked hard; by the late 1880s he was a father, an editor, and a writer.
Image 9The center third of Education (1890), a stained glass window by Louis Comfort Tiffany and Tiffany Studios, located in Linsly-Chittenden Hall at Yale University. It depicts Science (personified by Devotion, Labor, Truth, Research and Intuition) and Religion (personified by Purity, Faith, Hope, Reverence and Inspiration) in harmony, presided over by the central personification of "Light·Love·Life".
Philosophy ponders the most fundamental questions humankind has been able to ask. These are increasingly numerous and over time they have been arranged into the overlapping branches of the philosophy tree:
Aesthetics: What is art? What is beauty? Is there a standard of taste? Is art meaningful? If so, what does it mean? What is good art? Is art for the purpose of an end, or is "art for art's sake?" What connects us to art? How does art affect us? Is some art unethical? Can art corrupt or elevate societies?
Epistemology: What are the nature and limits of knowledge? What is more fundamental to human existence, knowing (epistemology) or being (ontology)? How do we come to know what we know? What are the limits and scope of knowledge? How can we know that there are other minds (if we can)? How can we know that there is an external world (if we can)? How can we prove our answers? What is a true statement?
Ethics: Is there a difference between ethically right and wrong actions (or values, or institutions)? If so, what is that difference? Which actions are right, and which wrong? Do divine commands make right acts right, or is their rightness based on something else? Are there standards of rightness that are absolute, or are all such standards relative to particular cultures? How should I live? What is happiness?
Logic: What makes a good argument? How can I think critically about complicated arguments? What makes for good thinking? When can I say that something just does not make sense? Where is the origin of logic?
Metaphysics: What sorts of things exist? What is the nature of those things? Do some things exist independently of our perception? What is the nature of space and time? What is the relationship of the mind to the body? What is it to be a person? What is it to be conscious? Do gods exist?
Political philosophy: Are political institutions and their exercise of power justified? What is justice? Is there a 'proper' role and scope of government? Is democracy the best form of governance? Is governance ethically justifiable? Should a state be allowed? Should a state be able to promote the norms and values of a certain moral or religious doctrine? Are states allowed to go to war? Do states have duties against inhabitants of other states?