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The Philosophy Portal

A portal for Wikipedia's philosophy resources • 18,559 articles in English

Left to right: Plato, Kant, Nietzsche, Buddha, Confucius, Averroes

Philosophy 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 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 about 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 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 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 the scope and fundamental concepts of these fields. It also investigates their methods and ethical implications. (Full article...)

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Bohr in 1922

Niels Henrik David Bohr (7 October 1885 – 18 November 1962) was a Danish theoretical physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research.

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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Cantor, c. 1910

Georg Ferdinand Ludwig Philipp Cantor (/ˈkæntɔːr/ KAN-tor; German: [ˈɡeːɔʁk ˈfɛʁdinant ˈluːtvɪç ˈfiːlɪp ˈkantoːɐ̯]; 3 March [O.S. 19 February] 1845 – 6 January 1918) was a mathematician who played a pivotal role in the creation of set theory, which has become a fundamental theory in mathematics. Cantor established the importance of one-to-one correspondence between the members of two sets, defined infinite and well-ordered sets, and proved that the real numbers are more numerous than the natural numbers. Cantor's method of proof of this theorem implies the existence of an infinity of infinities. He defined the cardinal and ordinal numbers and their arithmetic. Cantor's work is of great philosophical interest, a fact he was well aware of.

Originally, Cantor's theory of transfinite numbers was regarded as counter-intuitive – even shocking. This caused it to encounter resistance from mathematical contemporaries such as Leopold Kronecker and Henri Poincaré and later from Hermann Weyl and L. E. J. Brouwer, while Ludwig Wittgenstein raised philosophical objections; see Controversy over Cantor's theory. Cantor, a devout Lutheran Christian, believed the theory had been communicated to him by God. Some Christian theologians (particularly neo-Scholastics) saw Cantor's work as a challenge to the uniqueness of the absolute infinity in the nature of God – on one occasion equating the theory of transfinite numbers with pantheism – a proposition that Cantor vigorously rejected. Not all theologians were against Cantor's theory; prominent neo-scholastic philosopher Constantin Gutberlet was in favor of it and Cardinal Johann Baptist Franzelin accepted it as a valid theory (after Cantor made some important clarifications). (Full article...)
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A stamp of Zhang Heng issued by China Post in 1955

Zhang Heng (Chinese: 張衡; AD 78–139), formerly romanized Chang Heng, was a Chinese polymathic scientist and statesman who lived during the Eastern Han dynasty. Educated in the capital cities of Luoyang and Chang'an, he achieved success as an astronomer, mathematician, seismologist, hydraulic engineer, inventor, geographer, cartographer, ethnographer, artist, poet, philosopher, politician, and literary scholar.

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...)
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Title page, 1798

Maria: or, The Wrongs of Woman is Mary Wollstonecraft's unfinished novelistic sequel to her revolutionary political treatise A Vindication of the Rights of Woman (1792). The Wrongs of Woman was published posthumously in 1798 by her husband, William Godwin, and is often considered her most radical feminist work.

Wollstonecraft's philosophical and gothic novel revolves around the story of a woman imprisoned in an insane asylum by her husband. It focuses on the societal rather than the individual "wrongs of woman" and criticizes what Wollstonecraft viewed as the patriarchal institution of marriage in eighteenth-century Britain and the legal system that protected it. However, the heroine's inability to relinquish her romantic fantasies also reveals women's collusion in their oppression through false and damaging sentimentalism. The novel pioneered the celebration of female sexuality and cross-class identification between women. Such themes, coupled with the publication of Godwin's scandalous Memoirs of Wollstonecraft's life, made the novel unpopular at the time it was published. (Full article...)
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Title page from the first edition of Locke's Some Thoughts Concerning Education (1693)

Some Thoughts Concerning Education is a 1693 treatise on the education of gentlemen written by the English philosopher John Locke. For over a century, it was the most important philosophical work on education in England. It was translated into almost all of the major written European languages during the eighteenth century, and nearly every European writer on education after Locke, including Jean-Jacques Rousseau, acknowledged its influence.

In his Essay Concerning Human Understanding (1690), Locke outlined a new theory of mind, contending that the mind is originally a tabula rasa or "blank slate"; that is, it did not contain any innate ideas at birth. Some Thoughts Concerning Education explains how to educate that mind using three distinct methods: the development of a healthy body; the formation of a virtuous character; and the choice of an appropriate academic curriculum. (Full article...)
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Bust of Shen at the Beijing Ancient Observatory

Shen Kuo (Chinese: 沈括; 1031–1095) or Shen Gua, courtesy name Cunzhong (存中) and pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁), was a Chinese polymath, scientist, and statesman of the Song dynasty (960–1279). Shen was a master in many fields of study including mathematics, optics, and horology. In his career as a civil servant, he became a finance minister, governmental state inspector, head official for the Bureau of Astronomy in the Song court, Assistant Minister of Imperial Hospitality, and also served as an academic chancellor. At court his political allegiance was to the Reformist faction known as the New Policies Group, headed by Chancellor Wang Anshi (1021–1085).

In his Dream Pool Essays or Dream Torrent Essays (夢溪筆談; Mengxi Bitan) of 1088, Shen was the first to describe the magnetic needle compass, which would be used for navigation (first described in Europe by Alexander Neckam in 1187). Shen discovered the concept of true north in terms of magnetic declination towards the north pole, with experimentation of suspended magnetic needles and "the improved meridian determined by Shen's [astronomical] measurement of the distance between the pole star and true north". This was the decisive step in human history to make compasses more useful for navigation, and may have been a concept unknown in Europe for another four hundred years (evidence of German sundials made circa 1450 show markings similar to Chinese geomancers' compasses in regard to declination). (Full article...)
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Sir Bernard Arthur Owen Williams (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.

As Knightbridge Professor of Philosophy at the University of Cambridge and Deutsch Professor of Philosophy at the University of California, Berkeley, Williams became known for his efforts to reorient the study of moral philosophy to psychology, history, and in particular to the Greeks. Described by Colin McGinn as an "analytical philosopher with the soul of a general humanist," he was sceptical about attempts to create a foundation for moral philosophy. Martha Nussbaum wrote that he demanded of philosophy that it "come to terms with, and contain, the difficulty and complexity of human life." (Full article...)
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Portrait by August Köhler, c. 1910, after 1627 original

Johannes Kepler (/ˈkɛplər/; German: [joˈhanəs ˈkɛplɐ, -nɛs -] ; 27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonice Mundi, and Epitome Astronomiae Copernicanae, influencing among others Isaac Newton, providing one of the foundations for his theory of universal gravitation. The variety and impact of his work made Kepler one of the founders and fathers of modern astronomy, the scientific method, natural and modern science. He has been described as the "father of science fiction" for his novel Somnium.

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. He is also known for postulating the Kepler conjecture. (Full article...)
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Mary Wollstonecraft by John Opie (c. 1791)

The lifetime of British writer, philosopher, and feminist Mary 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 book Original 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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Archimedes Thoughtful by Fetti (1620)

Archimedes of Syracuse (/ˌɑːrkɪˈmiːdiːz/ AR-kim-EE-deez; c. 287 – c. 212 BC) was an Ancient Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. Although few details of his life are known, he is considered one of the leading scientists in classical antiquity. Regarded as the greatest mathematician of ancient history, and one of the greatest of all time, Archimedes anticipated modern calculus and analysis by applying the concept of the infinitely small and the method of exhaustion to derive and rigorously prove a range of geometrical theorems. These include the area of a circle, the surface area and volume of a sphere, the area of an ellipse, the area under a parabola, the volume of a segment of a paraboloid of revolution, the volume of a segment of a hyperboloid of revolution, and the area of a spiral.

Archimedes' other mathematical achievements include deriving an approximation of pi ( $π$ ), defining and investigating the Archimedean spiral, and devising a system using exponentiation for expressing very large numbers. He was also one of the first to apply mathematics to physical phenomena, working on statics and hydrostatics. Archimedes' achievements in this area include a proof of the law of the lever, the widespread use of the concept of center of gravity, and the enunciation of the law of buoyancy known as Archimedes' principle. In astronomy, he made measurements of the apparent diameter of the Sun and the size of the universe. He is also said to have built a planetarium device that demonstrated the movements of the known celestial bodies, and may have been a precursor to the Antikythera mechanism. He is also credited with designing innovative machines, such as his screw pump, compound pulleys, and defensive war machines to protect his native Syracuse from invasion. (Full article...)
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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:
1. attitude polarization (when a disagreement becomes more extreme even though the different parties are exposed to the same evidence)
2. belief perseverance (when beliefs persist after the evidence for them is shown to be false)
3. the irrational primacy effect (a greater reliance on information encountered early in a series)
4. illusory correlation (when people falsely perceive an association between two events or situations).
(Full article...)
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Anekāntavāda (Sanskrit: अनेकान्तवाद, "many-sidedness") 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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Why Marx Was Right is a 2011 non-fiction book by the British academic Terry Eagleton about the 19th-century philosopher Karl Marx and the schools of thought, collectively known as Marxism, that arose from his work. Written for laypeople, Why Marx Was Right outlines ten objections to Marxism that they may hold and aims to refute each one in turn. These include arguments that Marxism is irrelevant owing to changing social classes in the modern world, that it is deterministic and utopian, and that Marxists oppose all reforms and believe in an authoritarian state.

In his counterarguments, Eagleton explains how class struggle is central to Marxism, and that history is seen as a progression of modes of production, like feudalism and capitalism, involving the materials, technology and social relations required to produce goods and services within the society. Under a capitalist economy, the working class, known as the proletariat, are those lacking significant autonomy over their labour conditions, and have no control over the means of production. Eagleton describes how revolutions could lead to a new mode of production—socialism—in which the working class have control, and an eventual communist society could make the state obsolete. He explores the failures of the Soviet Union and other Marxist–Leninist countries. (Full article...)
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1897 illustration of La Peau de chagrin, drawn by Adrien Moreau and published by George Barrie & Son

La Peau de chagrin (French pronunciation: [la po də ʃaɡʁɛ̃], The Skin of Shagreen), known in English as The Magic Skin and The Wild Ass's Skin, is an 1831 novel by French novelist and playwright Honoré de Balzac (1799–1850). Set in early 19th-century Paris, it tells the story of a young man who finds a magic piece of shagreen (untanned skin from a wild ass) that fulfills his every desire. For each wish granted, however, the skin shrinks and consumes a portion of his physical energy. La Peau de chagrin belongs to the Études philosophiques group of Balzac's sequence of novels, La Comédie humaine.

Before the book was completed, Balzac created excitement about it by publishing a series of articles and story fragments in several Parisian journals. Although he was five months late in delivering the manuscript, he succeeded in generating sufficient interest that the novel sold out instantly upon its publication. A second edition, which included a series of twelve other "philosophical tales", was released one month later. (Full article...)
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Icon of St. Maximus

Maximus the Confessor (Greek: Μάξιμος ὁ Ὁμολογητής, romanized: Maximos ho Homologētēs), also spelled Maximos, otherwise known as Maximus the Theologian and Maximus of Constantinople (c. 580 – 13 August 662), was a Christian monk, theologian, and scholar.

In his early life, Maximus was a civil servant, and an aide to the Byzantine Emperor Heraclius. He gave up this life in the political sphere to enter the monastic life. Maximus had studied diverse schools of philosophy, and certainly what was common for his time, the Platonic dialogues, the works of Aristotle, and numerous later Platonic commentators on Aristotle and Plato, like Plotinus, Porphyry, Iamblichus, and Proclus. When one of his friends began espousing the Christological position known as Monothelitism, Maximus was drawn into the controversy, in which he supported an interpretation of the Chalcedonian formula on the basis of which it was asserted that Jesus had both a human and a divine will. Maximus is venerated in both the Catholic and Eastern Orthodox Churches. He was eventually persecuted for his Christological positions; following a trial, his tongue and right hand were mutilated. (Full article...)

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... that artist Tove Jansson based the children's book character Snufkin on a political philosopher whom she had dated?
... 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"?
... that according to some metaphysicians, there are no relations?
... that physics, chemistry, and biology were all part of philosophy before they became separate disciplines?
... that Dave Frederick has been referred to as the "Sussex County humorist-teacher-writer-radio-host-philosopher dude"?
... that one reviewer for Women Philosophers in the Long Nineteenth Century was let down by the book's lack of poetry?
... that E. Graham Howe "introduced Eastern philosophy to psychotherapy in England"?
... that Albert Einstein wrote to Joseph Petzoldt in 1914 that he had "long shared his convictions", after reading one of his philosophical books?

Selected philosopher of the week

Blaise Pascal (pronounced [blez pɑskɑl]), (June 19, 1623 – August 19, 1662) was a French mathematician, physicist, and religious philosopher. He was a child prodigy who was educated by his father. Pascal's earliest work was in the natural and applied sciences where he made important contributions to the construction of mechanical calculators, the study of fluids, and clarified the concepts of pressure and vacuum by generalizing the work of Evangelista Torricelli. Pascal also wrote powerfully in defense of the scientific method.

He was a mathematician of the first order. Pascal helped create two major new areas of research. He wrote a significant treatise on the subject of projective geometry at the age of sixteen and corresponded with Pierre de Fermat from 1654 and later on probability theory, strongly influencing the development of modern economics and social science.

Following a mystical experience in late 1654, he abandoned his scientific work and devoted himself to philosophy and theology. His two most famous works date from this period: the Lettres provinciales and the Pensées. However, he had suffered from ill-health throughout his life and his new interests were ended by his early death two months after his 39th birthday.

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Mary Wollstonecraft (/ˈwʊlstənkrɑːft, -kræft/; 27 April 1759 – 10 September 1797) was an eighteenth-century British writer, philosopher, and feminist. During her brief career, she wrote novels, treatises, a travel narrative, a history of the French Revolution, a conduct book, and a children's book. Wollstonecraft is best known for A Vindication of the Rights of Woman (1792), in which she argues that women are not naturally inferior to men, but appear to be only because they lack education. She suggests that both men and women should be treated as rational beings and imagines a social order founded on reason.

Until the late 20th century, Wollstonecraft's life, which encompassed several unconventional personal relationships, received more attention than her writing. After two ill-fated affairs, with Henry Fuseli and Gilbert Imlay (by whom she had a daughter, Fanny Imlay), Wollstonecraft married the philosopher William Godwin, one of the forefathers of the anarchist movement. Wollstonecraft died at the age of thirty-eight, ten days after giving birth to her second daughter, leaving behind several unfinished manuscripts. Her daughter Mary Wollstonecraft Godwin, later Mary Shelley, would become an accomplished writer in her own right.

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Germans protesting the Wehrmacht exhibition in 2002. The touring exhibition, organised by the Hamburg Institute for Social Research, began to erode the myth for the German public in the 1990s. The signs state "Glory and honour to the German soldier!"

The myth of the clean Wehrmacht (German: Mythos der sauberen Wehrmacht) is the negationist notion that the regular German armed forces (the Wehrmacht) were not involved in the Holocaust or other war crimes during World War II. The myth, heavily promoted by German authors and military personnel after World War II, completely denies the culpability of the German military command in the planning and perpetration of war crimes. Even where the perpetration of war crimes and the waging of an extermination campaign, particularly in the Soviet Union – the populace of which was viewed by the Nazis as "sub-humans" ruled by "Jewish Bolshevik" conspirators – has been acknowledged, they are ascribed to the "Party soldiers corps", the Schutzstaffel (SS), but not the regular German military.

The myth began during the war, being promoted in the Wehrmacht's official propaganda and by soldiers of all ranks seeking to portray their institution in the best possible light; as prospects for victory faded, these soldiers began to portray themselves as victims. After Germany's defeat, the verdict of the International Military Tribunal (1945–1946), which released many of the accused, was misrepresented as exonerating the Wehrmacht. Franz Halder and other Wehrmacht leaders signed the Generals' memorandum entitled "The German Army from 1920 to 1945", which laid out the key elements of the myth, attempting to exculpate the Wehrmacht from war crimes. (Full article...)
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Vishnu in a boar (Varaha) avatar rescues Bhudevi (earth)

Varaha Upanishad (Sanskrit: वराह उपनिषद्, "boar") is a minor Upanishad of Hinduism composed between the 13th and 16th centuries CE. Composed in Sanskrit, it is listed as one of the 32 Krishna Yajurveda Upanishads, and classified as one of 20 Yoga Upanishads.

The text has five chapters, structured primarily as a discussion between Vishnu in his Varaha (boar) avatar and the sage Ribhu. The discussion covers the subjects of Tattvas, the nature and relationship between the individual soul (Self, Atman) and the Ultimate Reality (Brahman), the seven stages of learning, the characteristics of Jivanmukti (inner sense of freedom while living), and the four types of Jivanmuktas (liberated persons). The last chapter of the text is dedicated to Yoga, its goals and methods. (Full article...)
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Marcus Tullius Cicero, the author of the Consolatio

Consolatio (Latin: [koːnsoːˈlaːtɪ.oː]; Consolation) is a lost philosophical work written by Marcus Tullius Cicero in the year 45 BC. The work had been written to soothe his grief after the death of his daughter, Tullia, which had occurred in February of the same year. Not much is known about the work, although it seems to have been inspired by the Greek philosopher Crantor's ancient work De Luctu ("On Grief"), and its structure was probably similar to a series of letter correspondences between Servius Sulpicius Rufus and Cicero.

Fragments of the work survive, having been quoted by Lactantius, and Jerome makes note of the work in a consolatory letter to Heliodorus of Altino. A popular piece of writing until its loss, the Consolatio is widely accepted as the distinct work that transmitted the earlier consolatio literary tradition to the Romans of the late Republic. In 1583, Italian scholar Carlo Sigonio claimed to have discovered a non-fragmentary version of the Consolatio, although most scholars now agree that this work was a fake, with modern stylometric methods backing this up. This Renaissance work, now known as the pseudo-Ciceronian Consolatio, does survive. (Full article...)
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Marble bust, Musée Saint-Raymond

Marcus Aurelius Antoninus (/ɔːˈriːliəs/ or-EE-lee-əs; Latin: [ˈmaːrkʊs au̯ˈreːliʊs antoːˈniːnʊs]; 26 April 121 – 17 March 180) was Roman emperor from 161 to 180 and a Stoic philosopher. He was a member of the Nerva–Antonine dynasty, the last of the rulers later known as the Five Good Emperors and the last emperor of the Pax Romana, an age of relative peace, calm, and stability for the Roman Empire lasting from 27 BC to 180 AD. He served as Roman consul in 140, 145, and 161.

Marcus Aurelius was the son of the praetor Marcus Annius Verus and his wife, Domitia Calvilla. He was related through marriage to the emperors Trajan and Hadrian. Marcus was three when his father died, and was raised by his mother and paternal grandfather. After Hadrian's adoptive son, Aelius Caesar, died in 138, Hadrian adopted Marcus's uncle Antoninus Pius as his new heir. In turn, Antoninus adopted Marcus and Lucius, the son of Aelius. Hadrian died that year, and Antoninus became emperor. Now heir to the throne, Marcus studied Greek and Latin under tutors such as Herodes Atticus and Marcus Cornelius Fronto. He married Antoninus's daughter Faustina in 145. (Full article...)
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Romanticism in Scotland was an artistic, literary and intellectual movement that developed between the late eighteenth and the early nineteenth centuries. It was part of the wider European Romantic movement, which was partly a reaction against the Age of Enlightenment, emphasising individual, national and emotional responses, moving beyond Renaissance and Classicist models, particularly into nostalgia for the Middle Ages. The concept of a separate national Scottish Romanticism was first articulated by the critics Ian Duncan and Murray Pittock in the Scottish Romanticism in World Literatures Conference held at UC Berkeley in 2006 and in the latter's Scottish and Irish Romanticism (2008), which argued for a national Romanticism based on the concepts of a distinct national public sphere and differentiated inflection of literary genres; the use of Scots language; the creation of a heroic national history through an Ossianic or Scottian 'taxonomy of glory' and the performance of a distinct national self in diaspora.

In the arts, Romanticism manifested itself in literature and drama in the adoption of the mythical bard Ossian, the exploration of national poetry in the work of Robert Burns and in the historical novels of Walter Scott. Scott also had a major impact on the development of a national Scottish drama. Art was heavily influenced by Ossian and a new view of the Highlands as the location of a wild and dramatic landscape. Scott profoundly affected architecture through his re-building of Abbotsford House in the early nineteenth century, which set off the boom in the Scots Baronial revival. In music, Burns was part of an attempt to produce a canon of Scottish song, which resulted in a cross fertilisation of Scottish and continental classical music, with romantic music becoming dominant in Scotland into the twentieth century. (Full article...)
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Evolutionary progress as a tree of life. Ernst Haeckel, 1866

Orthogenesis, also known as orthogenetic evolution, progressive evolution, evolutionary progress, or progressionism, is an obsolete biological hypothesis that organisms have an innate tendency to evolve in a definite direction towards some goal (teleology) due to some internal mechanism or "driving force". According to the theory, the largest-scale trends in evolution have an absolute goal such as increasing biological complexity. Prominent historical figures who have championed some form of evolutionary progress include Jean-Baptiste Lamarck, Pierre Teilhard de Chardin, and Henri Bergson.

The term orthogenesis was introduced by Wilhelm Haacke in 1893 and popularized by Theodor Eimer five years later. Proponents of orthogenesis had rejected the theory of natural selection as the organizing mechanism in evolution for a rectilinear (straight-line) model of directed evolution. With the emergence of the modern synthesis, in which genetics was integrated with evolution, orthogenesis and other alternatives to Darwinism were largely abandoned by biologists, but the notion that evolution represents progress is still widely shared; modern supporters include E. O. Wilson and Simon Conway Morris. The evolutionary biologist Ernst Mayr made the term effectively taboo in the journal Nature in 1948, by stating that it implied "some supernatural force". The American paleontologist George Gaylord Simpson (1953) attacked orthogenesis, linking it with vitalism by describing it as "the mysterious inner force". Despite this, many museum displays and textbook illustrations continue to give the impression that evolution is directed. (Full article...)
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Vivekananda in Chicago, September 1893. In note on the left Vivekananda wrote: "One infinite pure and holy – beyond thought beyond qualities I bow down to thee".

Swami Vivekananda (12 January 1863 – 4 July 1902), born Narendranath Datta was an Indian Hindu monk, philosopher, author, religious teacher, and the chief disciple of the Indian mystic Ramakrishna. He was a key figure in the introduction of Vedanta and Yoga to the Western world. He is credited with raising interfaith awareness and bringing Hinduism to the status of a major world religion in the late nineteenth century.

Born into an aristocratic Bengali Kayastha family in Calcutta, Vivekananda was inclined from a young age towards religion and spirituality. At the age of 18 he met Ramakrishna, later becoming a devoted follower and sannyasin (renunciate). After the death of Ramakrishna, Vivekananda toured the Indian subcontinent as a wandering monk and acquired first-hand knowledge of the often terrible living conditions of Indian people in then British India. In 1893 he traveled to the United States where he participated in the Parliament of Religions in Chicago. Here he delivered a famous speech beginning with the words: "Sisters and brothers of America ..." introducing the ancient Hindu religious tradition to Americans and speaking forcefully about the essential unity of all spiritual paths, and the necessity of embracing tolerance and renouncing fanaticism. The speech made an extraordinary impression. One American newspaper described him as "an orator by divine right and undoubtedly the greatest figure at the Parliament". (Full article...)
Image 8
Saint Irenaeus, the second-century philosopher and theologian who inspired the development of the Irenaean theodicy.

The Irenaean theodicy is a Christian theodicy (a response to the problem of evil). It defends the probability of an omnipotent and omnibenevolent (all-powerful and perfectly loving) God in the face of evidence of evil in the world. Numerous variations of theodicy have been proposed which all maintain that, while evil exists, God is either not responsible for creating evil, or he is not guilty for creating evil. Typically, the Irenaean theodicy asserts that the world is the best of all possible worlds because it allows humans to fully develop. Most versions of the Irenaean theodicy propose that creation is incomplete, as humans are not yet fully developed, and experiencing evil and suffering is necessary for such development.

Second-century theologian and philosopher Irenaeus, after whom the theodicy is named, proposed a two-stage creation process in which humans require free will and the experience of evil to develop. Another early Christian theologian, Origen, presented a response to the problem of evil which cast the world as a schoolroom or hospital for the soul; theologian Mark Scott has argued that Origen, rather than Irenaeus, ought to be considered the father of this kind of theodicy. Friedrich Schleiermacher argued in the nineteenth century that God must necessarily create flawlessly, so this world must be the best possible world because it allows God's purposes to be naturally fulfilled. In 1966, philosopher John Hick discussed the similarities of the preceding theodicies, calling them all "Irenaean". He supported the view that creation is incomplete and argued that the world is best placed for the full moral development of humans, as it presents genuine moral choices. British philosopher Richard Swinburne proposed that, to make a free moral choice, humans must have experience of the consequences of their own actions and that natural evil must exist to provide such choices. (Full article...)
Image 9

Roman copy (in marble) of a Greek bronze bust of Aristotle by Lysippos (c. 330 BC), with modern alabaster mantle

Aristotle (Attic Greek: Ἀριστοτέλης, romanized: Aristotélēs; 384–322 BC) was an Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, and the arts. As the founder of the Peripatetic school of philosophy in the Lyceum in Athens, he began the wider Aristotelian tradition that followed, which set the groundwork for the development of modern science.

Little is known about Aristotle's life. He was born in the city of Stagira in northern Greece during the Classical period. His father, Nicomachus, died when Aristotle was a child, and he was brought up by a guardian. At around eighteen years old, he joined Plato's Academy in Athens and remained there until the age of thirty seven (c. 347 BC). Shortly after Plato died, Aristotle left Athens and, at the request of Philip II of Macedon, tutored his son Alexander the Great beginning in 343 BC. He established a library in the Lyceum, which helped him to produce many of his hundreds of books on papyrus scrolls. (Full article...)
Image 10

A marble head of Socrates in the Louvre (copy of a lost bronze head by Lysippus)

Socrates (/ˈsɒkrətiːz/; Ancient Greek: Σωκράτης, romanized: Sōkrátēs; c. 470 – 399 BC) was a Greek philosopher from Athens who is credited as the founder of Western philosophy and as among the first moral philosophers of the ethical tradition of thought. An enigmatic figure, Socrates authored no texts and is known mainly through the posthumous accounts of classical writers, particularly his students Plato and Xenophon. These accounts are written as dialogues, in which Socrates and his interlocutors examine a subject in the style of question and answer; they gave rise to the Socratic dialogue literary genre. Contradictory accounts of Socrates make a reconstruction of his philosophy nearly impossible, a situation known as the Socratic problem. Socrates was a polarizing figure in Athenian society. In 399 BC, he was accused of impiety and corrupting the youth. After a trial that lasted a day, he was sentenced to death. He spent his last day in prison, refusing offers to help him escape.

Plato's dialogues are among the most comprehensive accounts of Socrates to survive from antiquity. They demonstrate the Socratic approach to areas of philosophy including epistemology and ethics. The Platonic Socrates lends his name to the concept of the Socratic method, and also to Socratic irony. The Socratic method of questioning, or elenchus, takes shape in dialogue using short questions and answers, epitomized by those Platonic texts in which Socrates and his interlocutors examine various aspects of an issue or an abstract meaning, usually relating to one of the virtues, and find themselves at an impasse, completely unable to define what they thought they understood. Socrates is known for proclaiming his total ignorance; he used to say that the only thing he was aware of was his ignorance, seeking to imply that the realization of one's ignorance is the first step in philosophizing. (Full article...)
Image 11
Merit, demerit and its retributions at the level of the individual. Based on Spiro.

Merit (Sanskrit: puṇya; Pali: puñña) is a concept considered fundamental to Buddhist ethics. It is a beneficial and protective force which accumulates as a result of good deeds, acts, or thoughts. Merit-making is important to Buddhist practice: merit brings good and agreeable results, determines the quality of the next life and contributes to a person's growth towards enlightenment. In addition, merit is also shared with a deceased loved one, in order to help the deceased in their new existence. Despite modernization, merit-making remains essential in traditional Buddhist countries and has had a significant impact on the rural economies in these countries.

Merit is connected with the notions of purity and goodness. Before Buddhism, merit was used with regard to ancestor worship, but in Buddhism it gained a more general ethical meaning. Merit is a force that results from good deeds done; it is capable of attracting good circumstances in a person's life, as well as improving the person's mind and inner well-being. Moreover, it affects the next lives to come, as well as the destination a person is reborn. The opposite of merit is demerit (pāpa), and it is believed that merit is able to weaken demerit. Indeed, merit has even been connected to the path to Nirvana itself, but many scholars say that this refers only to some types of merit. (Full article...)
Image 12

Maxwell, c. 1870s

James Clerk Maxwell (13 June 1831 – 5 November 1879) was a Scottish physicist and mathematician who was responsible for the classical theory of electromagnetic radiation, which was the first theory to describe electricity, magnetism and light as different manifestations of the same phenomenon. Maxwell's equations for electromagnetism achieved the second great unification in physics, where the first one had been realised by Isaac Newton. Maxwell was also key in the creation of statistical mechanics.

With the publication of "A Dynamical Theory of the Electromagnetic Field" in 1865, Maxwell demonstrated that electric and magnetic fields travel through space as waves moving at the speed of light. He proposed that light is an undulation in the same medium that is the cause of electric and magnetic phenomena. The unification of light and electrical phenomena led to his prediction of the existence of radio waves, and the paper contained his final version of his equations, which he had been working on since 1856. As a result of his equations, and other contributions such as introducing an effective method to deal with network problems and linear conductors, he is regarded as a founder of the modern field of electrical engineering. In 1871, Maxwell became the first Cavendish Professor of Physics, serving until his death in 1879. (Full article...)
Image 13
Statue of Shiva performing yoga in the lotus position

Yoga (UK: /ˈjəʊɡə/, US: /ˈjoʊɡə/; Sanskrit: योग 'yoga' [joːɡɐ] ; lit. 'yoke' or 'union') is a group of physical, mental, and spiritual practices or disciplines that originated in ancient India, aimed at controlling body and mind to attain various salvation goals, as practiced in the Hindu, Jain, and Buddhist traditions.

Yoga may have pre-Vedic origins, but is first attested in the early first millennium BCE. It developed as various traditions in the eastern Ganges basin drew from a common body of practices, including Vedic elements. Yoga-like practices are mentioned in the Rigveda and a number of early Upanishads, but systematic yoga concepts emerge during the fifth and sixth centuries BCE in ancient India's ascetic and Śramaṇa movements, including Jainism and Buddhism. The Yoga Sutras of Patanjali, the classical text on Hindu yoga, samkhya-based but influenced by Buddhism, dates to the early centuries of the Common Era. Hatha yoga texts began to emerge between the ninth and 11th centuries, originating in tantra. (Full article...)
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Vyāsatīrtha (c. 1460 – c. 1539), also called Vyasaraja or Chandrikacharya, was a Hindu philosopher, scholar, polemicist, commentator and poet belonging to the Madhwacharya's Dvaita order of Vedanta. As the rajaguru of Vijayanagara Empire, Vyasatirtha was at the forefront of a golden age in Dvaita which saw new developments in dialectical thought, growth of the Haridasa literature under bards like Purandara Dasa and Kanaka Dasa and an increased spread of Dvaita across the subcontinent. He himself composed many kīrtanas in Kannada and Sanskrit.

Three of his polemically themed doxographical works Nyayamruta, Tatparya Chandrika and Tarka Tandava (collectively called Vyasa Traya) documented and critiqued an encyclopaedic range of sub-philosophies in Advaita, Visistadvaita, Mahayana Buddhism, Mimamsa and Nyaya, revealing internal contradictions and fallacies. His Nyayamruta caused a stir in the Advaita community across the country requiring a rebuttal by Madhusudhana Saraswati through his text, Advaitasiddhi. He is considered as an amsha of Prahlada in the Madhva Parampara. (Full article...)
Image 15

Header of the first Russian edition, published August 11, 1917

Golos Truda (Russian: Голос Труда, lit. 'The Voice of Labour') was a Russian-language anarchist newspaper. Founded by working-class Russian expatriates in New York City in 1911, Golos Truda shifted to Petrograd during the Russian Revolution in 1917, when its editors took advantage of the general amnesty and right of return for political dissidents. There, the paper integrated itself into the anarchist labour movement, pronounced the necessity of a social revolution of and by the workers, and situated itself in opposition to the myriad of other left-wing movements.

The rise to power of the Bolsheviks marked the turning point for the newspaper however, as the new government enacted increasingly repressive measures against the publication of dissident literature and against anarchist agitation in general, and after a few years of low-profile publishing, the Golos Truda collective was finally expunged by the Stalinist regime in 1929. (Full article...)

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General images - load new batch

The following are images from various philosophy-related articles on Wikipedia.

Image 1Four Greek philosophers: Socrates, Antisthenes, Chrysippos, Epicurus; British Museum (from Ancient Greek philosophy)
Image 2Edmund Husserl, in the 1910s (from Western philosophy)
Image 3Valluvar, the Tamil philosopher of the post-Sangam era (from Eastern philosophy)
Image 4Pyrrho of Elis, marble head, Roman copy, Archaeological Museum of Corfu (from Western philosophy)
Image 5Bertrand Russell (from Western philosophy)
Image 6Abbo of Fleury (from Medieval philosophy)
Image 7Avicenna (from Medieval philosophy)
Image 8Ferdinand de Saussure (from Western philosophy)
Image 9Gottlob Frege, c. 1905 (from Western philosophy)
Image 10William James in 1906 (from Western philosophy)
Image 11Xiong Shili circa 1960 (from Eastern philosophy)
Image 12Hu Shih and DT Suzuki during his visit to China in 1934 (from Eastern philosophy)
Image 13Søren Kierkegaard, sketch by Niels Christian Kierkegaard, c. 1840 (from Western philosophy)
Image 14St. Anselm of Canterbury is credited as the founder of scholasticism. (from Western philosophy)
Image 15The 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 16Ionia, source of early Greek philosophy, in western Asia Minor (from Western philosophy)
Image 17Sigmund Freud by Max Halberstadt, c. 1921 (from Western philosophy)
Image 18Confucius (from Eastern philosophy)
Image 19From left to right: Virchand Gandhi, Anagarika Dharmapala, Swami Vivekananda, G. Bonet Maury. Parliament of World Religions, 1893 (from Eastern philosophy)
Image 20The 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
(from Ancient Greek philosophy)
Image 21Saint Augustine. (from Western philosophy)
Image 22Portrait by Philippe de Champaigne, 17th century (from Medieval philosophy)
Image 23Martin Heidegger (from Western philosophy)
Image 24Map of Alexander the Great's empire and the route he and Pyrrho of Elis took to India (from Western philosophy)
Image 25Bronze statue of Giordano Bruno by Ettore Ferrari, Campo de' Fiori, Rome (from Western philosophy)
Image 26Gottfried Wilhelm Leibniz, 1695 (from Western philosophy)
Image 27Adi Shankara (8th century CE) the main exponent of Advaita Vedānta (from Eastern philosophy)
Image 28Portrait of René Descartes, after Frans Hals, second half of 17th century (from Western philosophy)
Image 29Portrait of David Hume, by Allan Ramsay, 1754 (from Western philosophy)
Image 30Bust of Socrates, Roman copy after a Greek original from the 4th century BCE (from Western philosophy)
Image 31Portrait of John Locke, by Sir Godfrey Kneller, 1697 (from Western philosophy)
Image 32Georg Wilhelm Friedrich Hegel, steel engraving, after 1828 (from Western philosophy)
Image 33Fukuzawa Yukichi (1862) a key civil rights activist and liberal thinker (from Eastern philosophy)
Image 34Patricia Churchland, 2005 (from Western philosophy)
Image 35Portrait of Immanuel Kant, c. 1790 (from Western philosophy)
Image 36Aristotle in The School of Athens, by Raphael (from Western philosophy)
Image 37The Seven Sages of the Bamboo Grove, embroidery, 1860–1880 (from Eastern philosophy)
Image 38Erasmus is Credited as the Prince of the Humanists (from Western philosophy)
Image 39Friedrich Nietzsche, photograph by Friedrich Hartmann, c. 1875 (from Western philosophy)

Selected pictures

Image 1Plato (left) and Aristotle (right), a detail of The School of Athens, a fresco by Raphael. Aristotle gestures to the earth, representing his belief in knowledge through empirical observation and experience, while holding a copy of his Nicomachean Ethics in his hand, whilst Plato gestures to the heavens, representing his belief in The Forms.
Image 2A statue of peripatetic philosopher and botanist Theophrastus at the Palermo Botanical Gardens.
Image 3Carl von Linné, Alexander Roslin, 1775 (oil on canvas, Gripsholm Castle). Linnaeus was a Swedish botanist, zoologist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy".
Image 4Jane Addams (1860–1935) was an American settlement activist, reformer, social worker, sociologist, public administrator and author. She was a notable figure in the history of social work and women's suffrage in the United States and an advocate for world peace.
Image 5The House Builders (Portraits of Sir W.E. & The Hon. Lady Welby-Gregory), an 1880 painting by Frank Dicksee
Image 6Niels Bohr (1885–1962) was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research.
Image 7Oscar 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 8Painting of Gottfried Wilhelm Leibniz by Christoph Bernhard Francke, Braunschweig, Herzog Anton Ulrich Museum, 1700.
Image 9Adam Smith (baptised 16 June 1723 – died 17 July 1790 [OS: 5 June 1723 – 17 July 1790]) was a Scottish moral philosopher and a pioneer of political economics. One of the key figures of the Scottish Enlightenment, Smith is the author of The Theory of Moral Sentiments and An Inquiry into the Nature and Causes of the Wealth of Nations. The latter, usually abbreviated as The Wealth of Nations, is considered his magnum opus and the first modern work of economics. Smith is widely cited as the father of modern economics.
Image 10The statue of Immanuel Kant in front of the Immanuel Kant State University of Russia in Kaliningrad. The statue was made by notable sculptor Christian Daniel Rauch and unveiled in 1864. The statue was destroyed in 1945, but was remoulded in 1992 on the initiative of Marion Dönhoff.
Image 11Leo Tolstoy in 1897. Count Lev Nikolayevich Tolstoy was a Russian writer who is regarded as one of the greatest authors of all time.
Image 12Voltairine de Cleyre (1866–1912) was an American anarchist known for being a prolific writer and speaker who opposed state power, the capitalism she saw as interconnected with it, and marriage, and the domination of religion over sexuality and women's lives. She is often characterized as a major early feminist because of her views.
Image 13Philosophy, an 1896 mural by Robert Lewis Reid in the North Corridor on the Second Floor of the Library of Congress Thomas Jefferson Building, Washington, D.C.. The caption underneath reads: "HOW CHARMING IS DIVINE PHILOSOPHY."
Image 14The 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".
Image 15Lady Dorothy Browne and Sir Thomas Browne is an oil on panel painting attributed to the English artist Joan Carlile, and probably completed between 1641 and 1650. The painting depicts English physician Thomas Browne and his wife Dorothy.
Image 16Friedrich Schiller (1759–1805) was a German poet, philosopher, physician, historian and playwright.
Image 17Umberto Eco (1932–2016) was an Italian novelist, literary critic, philosopher, semiotician, and university professor. He is widely known for his 1980 novel Il nome della rosa (The Name of the Rose), a historical mystery combining semiotics in fiction with biblical analysis, medieval studies, and literary theory.

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Academic Branches of Philosophy

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?

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