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19th-century philosophy


In the 19th century the philosophies of the Enlightenment began to have a dramatic effect, the landmark works of philosophers such as Immanuel Kant and Jean-Jacques Rousseau influencing new generations of thinkers. In the late 18th century a movement known as Romanticism began; it validated strong emotion as an authentic not of aesthetic experience, placing new emphasis on such emotions as trepidation, horror and terror and awe. Key ideas that sparked changes in philosophy were the fast progress of science; evolution, as postulated by Vanini, Diderot, Lord Monboddo, Erasmus Darwin, Lamarck, Goethe, and Charles Darwin; and what might now be called emergent order, such as the free market of Adam Smith within nation states. Pressures for egalitarianism, and more rapid change culminated in a period of revolution and turbulence that would see philosophy change as well.

With the tumultuous years of 1789–1815, European culture was transformed by revolution, war and disruption. By ending many of the social and cultural props of the previous century, the stage was set for dramatic economic and political change. European philosophy reflected on, participated in, and drove, many of these changes.

The last third of the 18th century produced a host of ideas and works which would both systematize previous philosophy, and present a deep challenge to the basis of how philosophy had been systematized. Immanuel Kant is a name that most would mention as being among the most important of influences, as is Jean-Jacques Rousseau. While both of these philosophers were products of the 18th century and its assumptions, they pressed at the boundaries. In trying to explain the nature of the state and government, Rousseau would challenge the basis of government with his declaration that "Man is born free, but is everywhere in chains". Kant, while attempting to preserve axiomic skepticism, was forced to argue that we do not see true reality, nor do we speak of it. All we know of reality is appearances. Since all we can see of reality is appearances, which are subject to certain necessary and subjective forms of perceptions, Kant postulates the idea of an unknowable (while at the same time limiting our use of science and the principle of causality to the appearances). Hegel's distinction between the unknowable and the circumstantially unknown can be seen as the beginnings of Hegel's rational system of the universe.


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