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Philosophy
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Philosophy is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language.[1][2] It is distinguished from other ways of addressing fundamental questions (such as mysticism, myth, or the arts) by its critical, generally systematic approach and its reliance on rational argument.[3] The word "Philosophy" comes from the Greek φιλοσοφία [philosophia], which literally means "love of wisdom".[4][5][6]
Branches of philosophy
The following branches are the main areas of study:
- Metaphysics is the study of the nature of being and the world. Traditional branches are cosmology and ontology.
- Epistemology is concerned with the nature and scope of knowledge, and whether knowledge is possible. Among its central concerns has been the challenge posed by skepticism and the relationships between truth, belief, and justification.
- Ethics, or 'moral philosophy', is concerned with questions of how persons ought to act or if such questions are answerable. The main branches of ethics are meta-ethics, normative ethics, and applied ethics. Meta-ethics concerns the nature of ethical thought, comparison of various ethical systems, whether there are absolute ethical truths, and how such truths could be known. Ethics is also associated with the idea of morality. Plato's early dialogues include a search for definitions of virtue.
- Political philosophy is the study of government and the relationship of individuals and communities to the state. It includes questions about justice, the good, law, property, and the rights and obligations of the citizen.
- Aesthetics deals with beauty, art, enjoyment, sensory-emotional values, perception, and matters of taste and sentiment.
- Logic is the study of valid argument forms. Beginning in the late 19th century, mathematicians such as Frege focused on a mathematical treatment of logic, and today the subject of logic has two broad divisions: mathematical logic (formal symbolic logic) and what is now called philosophical logic.
- Philosophy of mind deals with the nature of the mind and its relationship to the body, and is typified by disputes between dualism and materialism. In recent years there has been increasing similarity between this branch of philosophy and cognitive science.
- Philosophy of language is inquiry into the nature, origins, and usage of language.
- Philosophy of religion is a branch of philosophy that asks questions about religion.
Most academic subjects have a philosophy, for example the philosophy of science, the philosophy of mathematics, the philosophy of logic, the philosophy of law, and the philosophy of history. In addition, a range of academic subjects have emerged to deal with areas which would have historically been the subject of philosophy. These include psychology, anthropology and science.
Western philosophy
The introduction of the terms "philosopher" and "philosophy" has been ascribed to the Greek thinker Pythagoras (see Diogenes Laertius: "De vita et moribus philosophorum", I, 12; Cicero: "Tusculanae disputationes", V, 8-9). The ascription is based on a passage in a lost work of Herakleides Pontikos, a disciple of Aristotle. It is considered to be part of the widespread legends of Pythagoras of this time. "Philosopher" replaced the word "sophist" (from sophoi), which was used to describe "wise men", teachers of rhetoric, who were important in Athenian democracy.
The history of philosophy is customarily divided into six periods: Ancient philosophy, Medieval philosophy, Renaissance philosophy, Early and Late Modern philosophy and Contemporary philosophy.
Ancient philosophy (c. 600 B.C. – c. A.D. 500)
Ancient philosophy is the philosophy of the Graeco-Roman world from the 6th century [circa 585] BC to the 6th century AD. It is usually divided into three periods: the pre-Socratic period, the period of Plato and Aristotle, and the post-Aristotelian (or Hellenistic) period. A fourth period is sometimes added which includes the Neoplatonic and Christian philosophers of Late Antiquity. The most important of the ancient philosophers (in terms of subsequent influence) are Plato and Aristotle[7].
The main subjects of ancient philosophy are: understanding the fundamental causes and principles of the universe; explaining it in an economical and parsimonious way; the epistemological problem of reconciling the diversity and change of the natural universe, with the possibility of obtaining fixed and certain knowledge about it; questions about things which cannot be perceived by the senses, such as numbers, elements, universals, and gods; the analysis of patterns of reasoning and argument; the nature of the good life and the importance of understanding and knowledge in order to pursue it; the explication of the concept of justice, and its relation to various political systems[7].
In this period the crucial features of the philosophical method were established: a critical approach to received or established views, and the appeal to reason and argumentation.
Medieval philosophy (c. 400–c. 1500)
Medieval philosophy is the philosophy of Western Europe and the Middle East during the Middle Ages, roughly extending from the Christianization of the Roman Empire until the Renaissance.[8] Medieval philosophy is defined partly by the rediscovery and further development of classical Greek and Hellenistic philosophy, and partly by the need to address theological problems and to integrate sacred doctrine (in Islam, Judaism, and Christianity) with secular learning.
Some problems discussed throughout this period are the relation of faith to reason, the existence and unity of God, the object of theology and metaphysics, the problems of knowledge, of universals, and of individuation.