Modern philosophy  

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By virtue of his magnum opus, the posthumous Ethics, Spinoza is considered one of Western philosophy's definitive ethicists.
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By virtue of his magnum opus, the posthumous Ethics, Spinoza is considered one of Western philosophy's definitive ethicists.

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Modern philosophy is a branch of philosophy that originated in Western Europe in the 17th century, and is now common worldwide. It is not a specific doctrine or school (and thus should not be confused with Modernism), although there are certain assumptions common to much of it, which helps to distinguish it from earlier philosophy.

The 17th and early 20th centuries roughly mark the beginning and the end of modern philosophy. How much if any of the Renaissance should be included is a matter for dispute; likewise modernity may or may not have ended in the twentieth century and been replaced by postmodernity. How one decides these questions will determine the scope of one's use of "modern philosophy." This article will focus on the history of philosophy beginning from Rene Descartes through the early twentieth century ending in Ludwig Wittgenstein.

Contents

History of modern philosophy

The major figures in philosophy of mind, epistemology, and metaphysics during the 17th and 18th centuries are roughly divided into 2 main groups. The "Rationalists," mostly in France and Germany, argued all knowledge must begin from certain "innate ideas" in the mind. Major rationalists were Descartes, Baruch Spinoza, Gottfried Leibniz, and Nicolas Malebranche. The "Empiricists," by contrast, held that knowledge must begin with sensory experience. Major figures in this line of thought are John Locke, George Berkeley, and David Hume (These are retrospective categories, for which Kant is largely responsible.) Ethics and political philosophy are usually not subsumed under these categories, though all these philosophers worked in ethics, in their own distinctive styles. Other important figures in political philosophy include Thomas Hobbes and Jean-Jacques Rousseau.

In the late eighteenth century Immanuel Kant set forth a groundbreaking philosophical system which claimed to bring unity to rationalism and empiricism. Whether or not he was right, he did not entirely succeed in ending philosophical dispute. Kant sparked a storm of philosophical work in Germany in the early nineteenth century, beginning with German idealism. The characteristic theme of idealism was that the world and the mind equally must be understood according to the same categories; it culminated in the work of Georg Wilhelm Friedrich Hegel, who among many other things said that "The real is rational; the rational is real."

Hegel's work was carried in many directions by his followers and critics. Karl Marx appropriated both Hegel's philosophy of history and the empirical ethics dominant in Britain, transforming Hegel's ideas into a strictly materialist form, setting the grounds for the development of a science of society. Søren Kierkegaard dismissed all systematic philosophy as an inadequate guide to life and meaning. For Kierkegaard, life is meant to be lived, not a mystery to be solved. Arthur Schopenhauer took idealism to the conclusion that the world was nothing but the futile endless interplay of images and desires, and advocated atheism and pessimism. Schopenhauer's ideas were taken up and transformed by Nietzsche, who seized upon their various dismissals of the world to proclaim "God is dead" and to reject all systematic philosophy and all striving for a fixed truth transcending the individual. Nietzsche found in this not grounds for pessimism, but the possibility of a new kind of freedom.

19th-century British philosophy came increasingly to be dominated by strands of neo-Hegelian thought, and as a reaction against this, figures such as Bertrand Russell and George Edward Moore began moving in the direction of analytic philosophy, which was essentially an updating of traditional empiricism to accommodate the new developments in logic of the German mathematician Gottlob Frege.

Rationalism

Modern philosophy traditionally begins with René Descartes and his dictum "I think, therefore I am". In the early seventeenth century the bulk of philosophy was dominated by Scholasticism, written by theologians and drawing upon Plato, Aristotle, and early Church writings. Descartes argued that many predominant Scholastic metaphysical doctrines were meaningless or false. In short, he proposed to begin philosophy from scratch. In his most important work, Meditations on First Philosophy, he attempts just this, over six brief essays. He tries to set aside as much as he possibly can of all his beliefs, to determine what if anything he knows for certain. He finds that he can doubt nearly everything: the reality of physical objects, God, his memories, history, science, even mathematics, but he cannot doubt that he is, in fact, doubting. He knows what he is thinking about, even if it is not true, and he knows that he is there thinking about it. From this basis he builds his knowledge back up again. He finds that some of the ideas he has could not have originated from him alone, but only from God; he proves that God exists. He then demonstrates that God would not allow him to be systematically deceived about everything; in essence, he vindicates ordinary methods of science and reasoning, as fallible but not false.

Rationalists

Empiricism

Empiricism is a theory of knowledge which opposes other theories of knowledge, such as rationalism, idealism and historicism. Empiricism asserts that knowledge comes (only or primarily) via sensory experience as opposed to rationalism, which asserts that knowledge comes (also) from pure thinking. Both empiricism and rationalism are individualist theories of knowledge, whereas historicism is a social epistemology. While historicism also acknowledges the role of experience, it differs from empiricism by assuming that sensory data cannot be understood without considering the historical and cultural circumstances in which observations are made. Empiricism should not be mixed up with empirical research because different epistemologies should be considered competing views on how best to do studies, and there is near consensus among researchers that studies should be empirical. Today empiricism should therefore be understood as one among competing ideals of getting knowledge or how to do studies. As such empiricism is first and foremost characterized by the ideal to let observational data "speak for themselves", while the competing views are opposed to this ideal. The term empiricism should thus not just be understood in relation to how this term has been used in the history of philosophy. It should also be constructed in a way which makes it possible to distinguish empiricism among other epistemological positions in contemporary science and scholarship. In other words: Empiricism as a concept has to be constructed along with other concepts, which together make it possible to make important discriminations between different ideals underlying contemporary science.

Empiricism is one of several competing views that predominate in the study of human knowledge, known as epistemology. Empiricism emphasizes the role of experience and evidence, especially sensory perception, in the formation of ideas, over the notion of innate ideas or tradition in contrast to, for example, rationalism which relies upon reason and can incorporate innate knowledge.

Empiricists

Political philosophy

Political philosophy is the study of such topics as politics, liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why (or even if) they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it should take and why, what the law is, and what duties citizens owe to a legitimate government, if any, and when it may be legitimately overthrown—if ever. In a vernacular sense, the term "political philosophy" often refers to a general view, or specific ethic, political belief or attitude, about politics that does not necessarily belong to the technical discipline of philosophy.

Political philosophers

Idealism

Idealism refers to the group of philosophies which assert that reality, or reality as we can know it, is fundamentally a construct of the mind or otherwise immaterial. Epistemologically, idealism manifests as a skepticism about the possibility of knowing any mind-independent thing. In a sociological sense, idealism emphasizes how human ideas—especially beliefs and values—shape society. As an ontological doctrine, idealism goes further, asserting that all entities are composed of mind or spirit. Idealism thus rejects physicalist and dualist theories that fail to ascribe priority to the mind. An extreme version of this idealism can exist in the philosophical notion of solipsism.

Idealist philosophers

Existentialism

Existentialism is generally considered to be the philosophical and cultural movement which holds that the starting point of philosophical thinking must be the individual and the experiences of the individual. Building on that, existentialist hold that moral thinking and scientific thinking together do not suffice to understand human existence, and, therefore, a further set of categories, governed by the norm of authenticity, is necessary to understand human existence.

Existential philosophers

Phenomenology

Phenomenology is the study of the structure of experience. It is a broad philosophical movement founded in the early years of the 20th century by Edmund Husserl, expanded upon by a circle of his followers at the universities of Göttingen and Munich in Germany. The philosophy then spread to France, the United States, and elsewhere, often in contexts far removed from Husserl's early work.

Phenomenological philosophers

Pragmatism

Pragmatism is a philosophical tradition centered on the linking of practice and theory. It describes a process where theory is extracted from practice, and applied back to practice to form what is called intelligent practice. Important positions characteristic of pragmatism include instrumentalism, radical empiricism, verificationism, conceptual relativity, and fallibilism. There is general consensus among pragmatists that philosophy should take the methods and insights of modern science into account. Charles Sanders Peirce (and his pragmatic maxim) deserves most of the credit for pragmatism, along with later twentieth century contributors William James and John Dewey.

Pragmatist philosophers

Analytic philosophy

Analytic philosophy came to dominate English-speaking countries in the 20th century. In the United States, United Kingdom, Canada, Scandinavia, Australia, and New Zealand, the overwhelming majority of university philosophy departments identify themselves as "analytic" departments. The term generally refers to a broad philosophical tradition characterized by an emphasis on clarity and argument (often achieved via modern formal logic and analysis of language) and a respect for the natural sciences.

Analytic philosophers

See also

See article 19th-century philosophy and contemporary philosophy




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