A portal for Knowledge (XXG)'s philosophy resources • 18,271
articles in English
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.
Intelligent design (ID) is a pseudoscientific argument for the existence of God, presented by its proponents as "an evidence-based scientific theory about life's origins". Proponents claim that "certain features of the universe and of living things are best explained by an intelligent cause, not an undirected process such as natural selection." ID is a form of creationism that lacks empirical support and offers no testable or tenable hypotheses, and is therefore not science. The leading proponents of ID are associated with the Discovery Institute, a Christian, politically conservative think tank based in the United States.
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 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...)
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...)
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The title-page of the 1759 edition published by Cramer in Geneva, which reads, "Candide, or Optimism, translated from the German by Dr. Ralph."
Candide, ou l'Optimisme (/kɒnˈdiːd/kon-DEED, French:[kɑ̃did]) is a French satire written by Voltaire, a philosopher of the Age of Enlightenment, first published in 1759. The novella has been widely translated, with English versions titled Candide: or, All for the Best (1759); Candide: or, The Optimist (1762); and Candide: Optimism (1947). It begins with a young man, Candide, who is living a sheltered life in an Edenicparadise and being indoctrinated with Leibnizian optimism by his mentor, Professor Pangloss. The work describes the abrupt cessation of this lifestyle, followed by Candide's slow and painful disillusionment as he witnesses and experiences great hardships in the world. Voltaire concludes Candide with, if not rejecting Leibnizian optimism outright, advocating a deeply practical precept, "we must cultivate our garden", in lieu of the Leibnizian mantra of Pangloss, "all is for the best" in the "best of all possible worlds".
Candide is characterized by its tone as well as by its erratic, fantastical, and fast-moving plot. A picaresque novel with a story similar to that of a more serious coming-of-age narrative (bildungsroman), it parodies many adventure and romance clichés, the struggles of which are caricatured in a tone that is bitter and matter-of-fact. Still, the events discussed are often based on historical happenings, such as the Seven Years' War and the 1755 Lisbon earthquake. As philosophers of Voltaire's day contended with the problem of evil, so does Candide in this short theological novel, albeit more directly and humorously. Voltaire ridicules religion, theologians, governments, armies, philosophies, and philosophers. Through Candide, he assaults Leibniz and his optimism. (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...)
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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.
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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First edition title page
A Vindication of the Rights of Woman: with Strictures on Political and Moral Subjects (1792), written by British philosopher and women's rights advocate Mary Wollstonecraft (1759–1797), is one of the earliest works of feminist philosophy. In it, Wollstonecraft responds to those educational and political theorists of the eighteenth century who did not believe women should receive a rational education. She argues that women ought to have an education commensurate with their position in society, claiming that women are essential to the nation because they educate its children and because they could be "companions" to their husbands, rather than mere wives. Instead of viewing women as ornaments to society or property to be traded in marriage, Wollstonecraft maintains that they are human beings deserving of the same fundamental rights as men.
Wollstonecraft was prompted to write the Rights of Woman after reading Charles Maurice de Talleyrand-Périgord's 1791 report to the French National Assembly, which stated that women should only receive domestic education. From her reaction to this specific event, she launched a broad attack against double standards, indicting men for encouraging women to indulge in excessive emotion. Wollstonecraft hurried to complete the work in direct response to ongoing events; she intended to write a more thoughtful second volume but died before completing it. (Full article...)
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...)
The Nazi regime considered the elimination of all manifestations of homosexuality in Germany one of its goals. Men were often arrested after denunciation, police raids, and through information uncovered during interrogations of other homosexuals. Those arrested were presumed guilty, and subjected to harsh interrogation and torture to elicit a confession. Between 1933 and 1945, an estimated 100,000 men were arrested as homosexuals; around 50,000 of these were sentenced by civilian courts, 6,400 to 7,000 by military courts [de], and an unknown number by special courts. Most of these men served time in regular prisons, and between 5,000 and 6,000 were imprisoned in concentration camps. The death rate of these prisoners has been estimated at 60 percent, a higher rate than those of other prisoner groups. A smaller number of men were sentenced to death or killed at Nazi euthanasia centres. Nazi Germany's persecution of homosexuals is considered to be the most severe episode in a long history of discrimination and violence targeting sexual minorities. (Full article...)
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Political Animals and Animal Politics is a 2014 edited collection published by Palgrave Macmillan and edited by the greenpolitical theoristsMarcel Wissenburg and David Schlosberg. The work addresses the emergence of academic animal ethics informed by political philosophy as opposed to moral philosophy. It was the first edited collection to be published on the topic, and the first book-length attempt to explore the breadth and boundaries of the literature. As well as a substantial introduction by the editors, it features ten sole-authored chapters split over three parts, respectively concerning institutional change for animals, the relationship between animal ethics and ecologism, and real-world laws made for the benefit of animals. The book's contributors were Wissenburg, Schlosberg, Manuel Arias-Maldonado, Chad Flanders, Christie Smith, Clemens Driessen, Simon Otjes, Kurtis Boyer, Per-Anders Svärd, and Mihnea Tanasescu. The focus of their individual chapters varies, but recurring features include discussions of human exceptionalism, exploration of ways that animal issues are or could be present in political discourse, and reflections on the relationship between theory and practice in politics.
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.
Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there are no deities. Atheism is contrasted with theism, which in its most general form is the belief that at least one deity exists.
Historically, evidence of atheistic viewpoints can be traced back to classical antiquity and early Indian philosophy. In the Western world, atheism declined as Christianity gained prominence. The 16th century and the Age of Enlightenment marked the resurgence of atheistic thought in Europe. Atheism achieved a significant position in the 20th century with legislation protecting freedom of thought. Broad estimates of those who have an absence of belief in a god range from 500 million to 1.1 billion people worldwide. (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...)
... that philosopher George Pitcher adopted a stray dog and her puppy that he took everywhere, including on a trip to France aboard the Queen Elizabeth 2?
... that the book Working from Within details how W. V. Quine only began to use the term "naturalism" years after he had already developed the key tenets of the philosophy?
His voluminous work had a great effect on continental philosophy and on literary theory. His work is often associated with post-structuralism and postmodernism although Derrida never used the latter term and repeatedly dissociated himself from it. (Other scholars within deconstruction, such as Philippe Lacoue-Labarthe, have characterized themselves as modernist rather than postmodernist in their outlook.)
Even critics of Derrida acknowledge that his philosophical project, whether adequately represented by the term deconstruction or not, involved extremely close reading of texts and tremendous erudition. He was also noted for his efforts to encourage the study of philosophy amongst French lycée students.
Sir Bernard Arthur Owen Williams (21 September 1929–10 June 2003) was an English moral philosopher, described by The Times as the "most brilliant and most important British moral philosopher of his time". His publications include Problems of the Self (1973), Moral Luck (1981), Ethics and the Limits of Philosophy (1985), and Truth And Truthfulness: An Essay In Genealogy (2002).
As Knightbridge Professor of Philosophy at the University of Cambridge and Deutsch Professor of Philosophy at the University of California, Berkeley, Williams became known internationally for his attempt to reorient the study of moral philosophy to history and culture, politics and psychology, and, in particular, to the Greeks. Described as an "analytic philosopher with the soul of a humanist", he saw himself as a synthesist, drawing together ideas from fields that seemed increasingly unable to communicate with one another. He rejected scientific and evolutionary reductionism, calling "morally unimaginative" reductionists, "the people I really do dislike". For Williams, complexity was irreducible, beautiful, and meaningful.
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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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J. R. R. Tolkien's bestselling fantasy novel The Lord of the Rings had an initial mixed literary reception. Despite some enthusiastic early reviews from supporters such as W. H. Auden, Iris Murdoch, and C. S. Lewis, literary hostility to Tolkien quickly became acute and continued until the start of the 21st century. From 1982, Tolkien scholars such as Tom Shippey and Verlyn Flieger began to roll back the hostility, defending Tolkien, rebutting the critics' attacks and analysing what they saw as good qualities in Tolkien's writing.
From 2003, scholars such as Brian Rosebury began to consider why Tolkien had attracted such hostility. Rosebury noted that Tolkien avoided calling The Lord of the Rings a novel, and that in Shippey's view Tolkien had been aiming to create a medieval-style heroic romance, despite modern scepticism about that literary mode. In 2014, Patrick Curry analysed the reasons for the hostility, finding it both visceral and full of evident mistakes, and suggesting that the issue was that the critics felt that Tolkien threatened their dominant ideology, modernism. (Full article...)
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Moral blindness, also known as ethical blindness, is defined as a person's temporary inability to see the ethical aspect of a decision they are making. It is often caused by external factors due to which an individual is unable to see the immoral aspect of their behavior in that particular situation.
Siddhantasara received positive reviews and became a landmark in the history of Gujarati literature but was also criticised because of the logical lapses and inconsistencies in the author's arguments. Manishankar Bhatt (known as Kavi Kant) published his review as a book titled Siddhantasaranu Avalokan (Analysis of Siddhantasara). Siddhantasara is considered by critics to be Manilal's most important work, and has been seen as a response to the cultural agenda and reform activities of colonial India at the time. (Full article...)
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Batman: Anarky is a 1999trade paperback published by DC Comics. The book collects prominent appearances of Anarky, a comic book character created by Alan Grant and Norm Breyfogle. Although all of the collected stories were written by Alan Grant, various artists contributed to individual stories. Dual introductions were written by the creators - both of whom introduce the character and give insight into their role in Anarky's creation and development.
Featured as an antagonist in various Batman comics during the '90s, stories based on the character were highly thematic, political, and philosophical in tone. The majority of the collected stories ("Anarky in Gotham City", "Anarky: Tomorrow Belongs to Us", "Anarky") are influenced by the philosophy of anarchism, while the final story ("Metamorphosis") is influenced by Frank R. Wallace. Although anti-statism is the overarching theme of the collection, other concepts are explored. Anarky's characterization was expanded throughout the stories to present him first as a libertarian socialist and anarchist, and in the final story as a vehicle for explorations into atheism, rationalism, and bicameral mentality. Literary references are also utilized throughout the collected stories to stress the philosophical foundations of the character. The collection also tracks the character's evolution from a petty, street-crime fighting vigilante, to a competent freedom fighter in opposition to powerful forces of evil. (Full article...)
In its judgment, the ICJ adopted the ICTY's conclusion from Radislav Krstić's conviction and concluded what happened in and around Srebrenica was done by members of the Army of Republika Srpska (VRS) "with the specific intent to destroy in part the group of the Muslims of Bosnia and Herzegovina as such, which constitute acts of genocide committed". The two international courts have ruled differently only concerning direct responsibility for acts of genocide in Bosnia and Herzegovina. The ICJ, in a proceeding of Bosnian genocide case that was brought by Bosnia and Herzegovina against Serbia and Montenegro, has made rulings to the extent that Serbia was not directly responsible for the perpetration of genocide but was responsible under "customary international law" for violating the obligation to "prevent and punish the crime of genocide". Other international bodies, such as the European Court of Human Rights and the United Nations General Assembly, have also passed resolutions acknowledging genocide occurred in Bosnia. German courts have made convictions based upon a more expansive interpretation of genocide than that used by international courts. (Full article...)
In 1943, Guthrie became the chairman of graduate philosophy at Georgetown University and dean of the Graduate School of Arts and Sciences. In this role, he admitted the first women to the school on equal terms as men. For twenty years, he promoted the belief that intellectuals must play a central role in combatting the ideologies that led to World War II. To that end, he was a member of the drafting committee of the UNESCO charter, was a co-founder of an American academy of Catholic intellectuals, and travelled the world with the U.S. State Department, for which he received honors from several countries and organizations. (Full article...)
Camus was born in French Algeria to pied-noir parents. He spent his childhood in a poor neighbourhood and later studied philosophy at the University of Algiers. He was in Paris when the Germans invaded France during World War II in 1940. Camus tried to flee but finally joined the French Resistance where he served as editor-in-chief at Combat, an outlawed newspaper. After the war, he was a celebrity figure and gave many lectures around the world. He married twice but had many extramarital affairs. Camus was politically active; he was part of the left that opposed Joseph Stalin and the Soviet Union because of their totalitarianism. Camus was a moralist and leaned towards anarcho-syndicalism. He was part of many organisations seeking European integration. During the Algerian War (1954–1962), he kept a neutral stance, advocating a multicultural and pluralistic Algeria, a position that was rejected by most parties. (Full article...)
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Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Charles Darwin popularised the term "natural selection", contrasting it with artificial selection, which is intentional, whereas natural selection is not.
Variation of traits, both genotypic and phenotypic, exists within all populations of organisms. However, some traits are more likely to facilitate survival and reproductive success. Thus, these traits are passed onto the next generation. These traits can also become more common within a population if the environment that favours these traits remain fixed. If new traits become more favored due to changes in a specific niche, microevolution occurs. If new traits become more favored due to changes in the broader environment, macroevolution occurs. Sometimes, new species can arise especially if these new traits are radically different from the traits possessed by their predecessors. (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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Mahadevi or Durga
The Devi Upanishad (Sanskrit:देवी उपनिषत्), is one of the minor Upanishads of Hinduism and a text composed in Sanskrit. It is one of the 19 Upanishads attached to the Atharvaveda, and is classified as one of the eight Shakta Upanishads. It is, as an Upanishad, a part of the corpus of Vedanta literature collection that present the philosophical concepts of Hinduism.
The text was likely composed between 9th- to 14th-centuries CE. It refers to Mahadevi as representing all goddesses. The Devi Upanishad is part of the five Atharvashiras Upanishads important to Tantra and Shakta philosophy traditions. (Full article...)
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Jainism (/ˈdʒeɪnɪzəm/JAY-niz-əm), also known as Jain Dharma, is an Indian religion. Jainism traces its spiritual ideas and history through the succession of twenty-four tirthankaras (supreme preachers of Dharma), with the first in the current time cycle being Rishabhadeva, whom the tradition holds to have lived millions of years ago, the twenty-third tirthankaraParshvanatha, whom historians date to the 9th century BCE, and the twenty-fourth tirthankaraMahavira, around 600 BCE. Jainism is considered an eternal dharma with the tirthankaras guiding every time cycle of the cosmology. The three main pillars of Jainism are ahiṃsā (non-violence), anekāntavāda (non-absolutism), and aparigraha (asceticism).
Jain monks take five main vows: ahiṃsā (non-violence), satya (truth), asteya (not stealing), brahmacharya (chastity), and aparigraha (non-possessiveness). These principles have affected Jain culture in many ways, such as leading to a predominantly lacto-vegetarian lifestyle. Parasparopagraho jīvānām (the function of souls is to help one another) is the faith's motto, and the Namokar Mantra is its most common and strongest prayer. (Full article...)
While the definitions given above may seem adequate at first glance, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies. Although none of these are entirely satisfactory definitions, and while the concept of species may not be a perfect model of life, it is still a useful tool to scientists and conservationists for studying life on Earth, regardless of the theoretical difficulties. If species were fixed and clearly distinct from one another, there would be no problem, but evolutionary processes cause species to change. This obliges taxonomists to decide, for example, when enough change has occurred to declare that a lineage should be divided into multiple chronospecies, or when populations have diverged to have enough distinct character states to be described as cladistic species. (Full article...)
Image 19The 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 39The 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 8The 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 15Oscar 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.
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?